diff --git a/lib/datasource/clojure/__snapshots__/index.spec.ts.snap b/lib/datasource/clojure/__snapshots__/index.spec.ts.snap
index aed87d93324495de2142545a4be50fe815f3807f..8be1ab42749a8dbeceba417c8ca37c1ef7091be3 100644
--- a/lib/datasource/clojure/__snapshots__/index.spec.ts.snap
+++ b/lib/datasource/clojure/__snapshots__/index.spec.ts.snap
@@ -26,8 +26,8 @@ Array [
       "host": "clojars.org",
       "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
     },
-    "method": "GET",
-    "url": "https://clojars.org/repo/org/example/package/1.0.4-SNAPSHOT/maven-metadata.xml",
+    "method": "HEAD",
+    "url": "https://clojars.org/repo/org/example/package/0.0.1/package-0.0.1.pom",
   },
   Object {
     "headers": Object {
@@ -71,8 +71,8 @@ Array [
       "host": "clojars.org",
       "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
     },
-    "method": "HEAD",
-    "url": "https://clojars.org/repo/org/example/package/1.0.4-SNAPSHOT/package-1.0.4-SNAPSHOT.pom",
+    "method": "GET",
+    "url": "https://clojars.org/repo/org/example/package/1.0.4-SNAPSHOT/maven-metadata.xml",
   },
   Object {
     "headers": Object {
@@ -92,6 +92,15 @@ Array [
     "method": "HEAD",
     "url": "https://clojars.org/repo/org/example/package/2.0.0/package-2.0.0.pom",
   },
+  Object {
+    "headers": Object {
+      "accept-encoding": "gzip, deflate, br",
+      "host": "clojars.org",
+      "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
+    },
+    "method": "HEAD",
+    "url": "https://clojars.org/repo/org/example/package/1.0.4-SNAPSHOT/package-1.0.4-SNAPSHOT.pom",
+  },
   Object {
     "headers": Object {
       "accept-encoding": "gzip, deflate, br",
@@ -148,6 +157,9 @@ Object {
   "name": "package",
   "registryUrl": "https://clojars.org/repo",
   "releases": Array [
+    Object {
+      "version": "0.0.1",
+    },
     Object {
       "releaseTimestamp": "2020-01-01T01:00:00.000Z",
       "version": "1.0.0",
@@ -226,8 +238,8 @@ Array [
       "host": "clojars.org",
       "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
     },
-    "method": "GET",
-    "url": "https://clojars.org/repo/org/example/package/1.0.4-SNAPSHOT/maven-metadata.xml",
+    "method": "HEAD",
+    "url": "https://clojars.org/repo/org/example/package/0.0.1/package-0.0.1.pom",
   },
   Object {
     "headers": Object {
@@ -271,8 +283,8 @@ Array [
       "host": "clojars.org",
       "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
     },
-    "method": "HEAD",
-    "url": "https://clojars.org/repo/org/example/package/1.0.4-SNAPSHOT/package-1.0.4-SNAPSHOT.pom",
+    "method": "GET",
+    "url": "https://clojars.org/repo/org/example/package/1.0.4-SNAPSHOT/maven-metadata.xml",
   },
   Object {
     "headers": Object {
@@ -292,6 +304,15 @@ Array [
     "method": "HEAD",
     "url": "https://clojars.org/repo/org/example/package/2.0.0/package-2.0.0.pom",
   },
+  Object {
+    "headers": Object {
+      "accept-encoding": "gzip, deflate, br",
+      "host": "clojars.org",
+      "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
+    },
+    "method": "HEAD",
+    "url": "https://clojars.org/repo/org/example/package/1.0.4-SNAPSHOT/package-1.0.4-SNAPSHOT.pom",
+  },
   Object {
     "headers": Object {
       "accept-encoding": "gzip, deflate, br",
@@ -339,8 +360,8 @@ Array [
       "host": "clojars.org",
       "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
     },
-    "method": "GET",
-    "url": "https://clojars.org/repo/org/example/package/1.0.4-SNAPSHOT/maven-metadata.xml",
+    "method": "HEAD",
+    "url": "https://clojars.org/repo/org/example/package/0.0.1/package-0.0.1.pom",
   },
   Object {
     "headers": Object {
@@ -384,8 +405,8 @@ Array [
       "host": "clojars.org",
       "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
     },
-    "method": "HEAD",
-    "url": "https://clojars.org/repo/org/example/package/1.0.4-SNAPSHOT/package-1.0.4-SNAPSHOT.pom",
+    "method": "GET",
+    "url": "https://clojars.org/repo/org/example/package/1.0.4-SNAPSHOT/maven-metadata.xml",
   },
   Object {
     "headers": Object {
@@ -405,6 +426,15 @@ Array [
     "method": "HEAD",
     "url": "https://clojars.org/repo/org/example/package/2.0.0/package-2.0.0.pom",
   },
+  Object {
+    "headers": Object {
+      "accept-encoding": "gzip, deflate, br",
+      "host": "clojars.org",
+      "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
+    },
+    "method": "HEAD",
+    "url": "https://clojars.org/repo/org/example/package/1.0.4-SNAPSHOT/package-1.0.4-SNAPSHOT.pom",
+  },
   Object {
     "headers": Object {
       "accept-encoding": "gzip, deflate, br",
@@ -447,8 +477,8 @@ Array [
       "host": "clojars.org",
       "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
     },
-    "method": "GET",
-    "url": "https://clojars.org/repo/org/example/package/1.0.4-SNAPSHOT/maven-metadata.xml",
+    "method": "HEAD",
+    "url": "https://clojars.org/repo/org/example/package/0.0.1/package-0.0.1.pom",
   },
   Object {
     "headers": Object {
@@ -492,8 +522,8 @@ Array [
       "host": "clojars.org",
       "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
     },
-    "method": "HEAD",
-    "url": "https://clojars.org/repo/org/example/package/1.0.4-SNAPSHOT/package-1.0.4-SNAPSHOT.pom",
+    "method": "GET",
+    "url": "https://clojars.org/repo/org/example/package/1.0.4-SNAPSHOT/maven-metadata.xml",
   },
   Object {
     "headers": Object {
@@ -513,6 +543,15 @@ Array [
     "method": "HEAD",
     "url": "https://clojars.org/repo/org/example/package/2.0.0/package-2.0.0.pom",
   },
+  Object {
+    "headers": Object {
+      "accept-encoding": "gzip, deflate, br",
+      "host": "clojars.org",
+      "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
+    },
+    "method": "HEAD",
+    "url": "https://clojars.org/repo/org/example/package/1.0.4-SNAPSHOT/package-1.0.4-SNAPSHOT.pom",
+  },
   Object {
     "headers": Object {
       "accept-encoding": "gzip, deflate, br",
@@ -536,6 +575,9 @@ Array [
 
 exports[`datasource/clojure/index ignores unsupported protocols 1`] = `
 Array [
+  Object {
+    "version": "0.0.1",
+  },
   Object {
     "releaseTimestamp": "2020-01-01T01:00:00.000Z",
     "version": "1.0.0",
@@ -577,8 +619,8 @@ Array [
       "host": "clojars.org",
       "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
     },
-    "method": "GET",
-    "url": "http://clojars.org/repo/org/example/package/1.0.4-SNAPSHOT/maven-metadata.xml",
+    "method": "HEAD",
+    "url": "http://clojars.org/repo/org/example/package/0.0.1/package-0.0.1.pom",
   },
   Object {
     "headers": Object {
@@ -622,8 +664,8 @@ Array [
       "host": "clojars.org",
       "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
     },
-    "method": "HEAD",
-    "url": "http://clojars.org/repo/org/example/package/1.0.4-SNAPSHOT/package-1.0.4-SNAPSHOT.pom",
+    "method": "GET",
+    "url": "http://clojars.org/repo/org/example/package/1.0.4-SNAPSHOT/maven-metadata.xml",
   },
   Object {
     "headers": Object {
@@ -643,6 +685,15 @@ Array [
     "method": "HEAD",
     "url": "http://clojars.org/repo/org/example/package/2.0.0/package-2.0.0.pom",
   },
+  Object {
+    "headers": Object {
+      "accept-encoding": "gzip, deflate, br",
+      "host": "clojars.org",
+      "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
+    },
+    "method": "HEAD",
+    "url": "http://clojars.org/repo/org/example/package/1.0.4-SNAPSHOT/package-1.0.4-SNAPSHOT.pom",
+  },
   Object {
     "headers": Object {
       "accept-encoding": "gzip, deflate, br",
@@ -672,6 +723,9 @@ Object {
   "name": "package",
   "registryUrl": "https://custom.registry.renovatebot.com",
   "releases": Array [
+    Object {
+      "version": "0.0.1",
+    },
     Object {
       "releaseTimestamp": "2020-01-01T01:00:00.000Z",
       "version": "1.0.0",
@@ -714,8 +768,8 @@ Array [
       "host": "custom.registry.renovatebot.com",
       "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
     },
-    "method": "GET",
-    "url": "https://custom.registry.renovatebot.com/org/example/package/1.0.4-SNAPSHOT/maven-metadata.xml",
+    "method": "HEAD",
+    "url": "https://custom.registry.renovatebot.com/org/example/package/0.0.1/package-0.0.1.pom",
   },
   Object {
     "headers": Object {
@@ -759,8 +813,8 @@ Array [
       "host": "custom.registry.renovatebot.com",
       "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
     },
-    "method": "HEAD",
-    "url": "https://custom.registry.renovatebot.com/org/example/package/1.0.4-SNAPSHOT/package-1.0.4-SNAPSHOT.pom",
+    "method": "GET",
+    "url": "https://custom.registry.renovatebot.com/org/example/package/1.0.4-SNAPSHOT/maven-metadata.xml",
   },
   Object {
     "headers": Object {
@@ -780,6 +834,15 @@ Array [
     "method": "HEAD",
     "url": "https://custom.registry.renovatebot.com/org/example/package/2.0.0/package-2.0.0.pom",
   },
+  Object {
+    "headers": Object {
+      "accept-encoding": "gzip, deflate, br",
+      "host": "custom.registry.renovatebot.com",
+      "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
+    },
+    "method": "HEAD",
+    "url": "https://custom.registry.renovatebot.com/org/example/package/1.0.4-SNAPSHOT/package-1.0.4-SNAPSHOT.pom",
+  },
   Object {
     "headers": Object {
       "accept-encoding": "gzip, deflate, br",
@@ -809,6 +872,9 @@ Object {
   "name": "package",
   "registryUrl": "https://clojars.org/repo",
   "releases": Array [
+    Object {
+      "version": "0.0.1",
+    },
     Object {
       "releaseTimestamp": "2020-01-01T01:00:00.000Z",
       "version": "1.0.0",
@@ -860,8 +926,8 @@ Array [
       "host": "clojars.org",
       "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
     },
-    "method": "GET",
-    "url": "https://clojars.org/repo/org/example/package/1.0.4-SNAPSHOT/maven-metadata.xml",
+    "method": "HEAD",
+    "url": "https://clojars.org/repo/org/example/package/0.0.1/package-0.0.1.pom",
   },
   Object {
     "headers": Object {
@@ -905,8 +971,8 @@ Array [
       "host": "clojars.org",
       "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
     },
-    "method": "HEAD",
-    "url": "https://clojars.org/repo/org/example/package/1.0.4-SNAPSHOT/package-1.0.4-SNAPSHOT.pom",
+    "method": "GET",
+    "url": "https://clojars.org/repo/org/example/package/1.0.4-SNAPSHOT/maven-metadata.xml",
   },
   Object {
     "headers": Object {
@@ -926,6 +992,15 @@ Array [
     "method": "HEAD",
     "url": "https://clojars.org/repo/org/example/package/2.0.0/package-2.0.0.pom",
   },
+  Object {
+    "headers": Object {
+      "accept-encoding": "gzip, deflate, br",
+      "host": "clojars.org",
+      "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
+    },
+    "method": "HEAD",
+    "url": "https://clojars.org/repo/org/example/package/1.0.4-SNAPSHOT/package-1.0.4-SNAPSHOT.pom",
+  },
   Object {
     "headers": Object {
       "accept-encoding": "gzip, deflate, br",
@@ -955,6 +1030,9 @@ Object {
   "name": "package",
   "registryUrl": "https://clojars.org/repo",
   "releases": Array [
+    Object {
+      "version": "0.0.1",
+    },
     Object {
       "releaseTimestamp": "2020-01-01T01:00:00.000Z",
       "version": "1.0.0",
@@ -1006,8 +1084,8 @@ Array [
       "host": "clojars.org",
       "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
     },
-    "method": "GET",
-    "url": "https://clojars.org/repo/org/example/package/1.0.4-SNAPSHOT/maven-metadata.xml",
+    "method": "HEAD",
+    "url": "https://clojars.org/repo/org/example/package/0.0.1/package-0.0.1.pom",
   },
   Object {
     "headers": Object {
@@ -1051,8 +1129,8 @@ Array [
       "host": "clojars.org",
       "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
     },
-    "method": "HEAD",
-    "url": "https://clojars.org/repo/org/example/package/1.0.4-SNAPSHOT/package-1.0.4-SNAPSHOT.pom",
+    "method": "GET",
+    "url": "https://clojars.org/repo/org/example/package/1.0.4-SNAPSHOT/maven-metadata.xml",
   },
   Object {
     "headers": Object {
@@ -1072,6 +1150,15 @@ Array [
     "method": "HEAD",
     "url": "https://clojars.org/repo/org/example/package/2.0.0/package-2.0.0.pom",
   },
+  Object {
+    "headers": Object {
+      "accept-encoding": "gzip, deflate, br",
+      "host": "clojars.org",
+      "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
+    },
+    "method": "HEAD",
+    "url": "https://clojars.org/repo/org/example/package/1.0.4-SNAPSHOT/package-1.0.4-SNAPSHOT.pom",
+  },
   Object {
     "headers": Object {
       "accept-encoding": "gzip, deflate, br",
diff --git a/lib/datasource/clojure/index.spec.ts b/lib/datasource/clojure/index.spec.ts
index d6b4d312aa7e5343dd5aa8da350b61ee2cf7ae38..5cd42ec50797fafa9a8dcbe88a07a82d783fd87b 100644
--- a/lib/datasource/clojure/index.spec.ts
+++ b/lib/datasource/clojure/index.spec.ts
@@ -42,6 +42,7 @@ function mockGenericPackage(opts: MockOpts = {}) {
   const jars =
     opts.jars === undefined
       ? {
+          '0.0.1': 200,
           '1.0.0': 200,
           '1.0.1': 404,
           '1.0.2': 500,
@@ -94,9 +95,12 @@ function mockGenericPackage(opts: MockOpts = {}) {
         .map((x) => parseInt(x, 10))
         .map((x) => (x < 10 ? `0${x}` : `${x}`));
       const timestamp = `2020-01-01T${major}:${minor}:${patch}.000Z`;
+      const headers = version.startsWith('0.')
+        ? {}
+        : { 'Last-Modified': timestamp };
       scope
         .head(`/${packagePath}/${version}/${artifact}-${version}.pom`)
-        .reply(status, '', { 'Last-Modified': timestamp });
+        .reply(status, '', headers);
     });
   }
 
@@ -188,6 +192,7 @@ describe('datasource/clojure/index', () => {
     );
 
     expect(releases).toMatchObject([
+      { version: '0.0.1' },
       { version: '1.0.0' },
       { version: '1.0.3-SNAPSHOT' },
       { version: '2.0.0' },
diff --git a/lib/datasource/maven/__fixtures__/metadata.xml b/lib/datasource/maven/__fixtures__/metadata.xml
index aa8588fb848e358a323781bff4969120aa62b705..c10f6f2fd822d40d9a50ed0e7ea9ca5e885fe27b 100644
--- a/lib/datasource/maven/__fixtures__/metadata.xml
+++ b/lib/datasource/maven/__fixtures__/metadata.xml
@@ -6,6 +6,7 @@
     <latest>2.0.0</latest>
     <release>2.0.0</release>
     <versions>
+      <version>0.0.1</version>
       <version>1.0.0</version>
       <version>1.0.1</version>
       <version>1.0.2</version>
diff --git a/lib/datasource/maven/__snapshots__/index.spec.ts.snap b/lib/datasource/maven/__snapshots__/index.spec.ts.snap
index 799a466c033d0c3886051ccc54c23232d4a564c0..a040d010a5060a21e6a374218620a1d876e25d25 100644
--- a/lib/datasource/maven/__snapshots__/index.spec.ts.snap
+++ b/lib/datasource/maven/__snapshots__/index.spec.ts.snap
@@ -26,8 +26,8 @@ Array [
       "host": "repo.maven.apache.org",
       "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
     },
-    "method": "GET",
-    "url": "https://repo.maven.apache.org/maven2/org/example/package/1.0.4-SNAPSHOT/maven-metadata.xml",
+    "method": "HEAD",
+    "url": "https://repo.maven.apache.org/maven2/org/example/package/0.0.1/package-0.0.1.pom",
   },
   Object {
     "headers": Object {
@@ -71,8 +71,8 @@ Array [
       "host": "repo.maven.apache.org",
       "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
     },
-    "method": "HEAD",
-    "url": "https://repo.maven.apache.org/maven2/org/example/package/1.0.4-SNAPSHOT/package-1.0.4-SNAPSHOT.pom",
+    "method": "GET",
+    "url": "https://repo.maven.apache.org/maven2/org/example/package/1.0.4-SNAPSHOT/maven-metadata.xml",
   },
   Object {
     "headers": Object {
@@ -92,6 +92,15 @@ Array [
     "method": "HEAD",
     "url": "https://repo.maven.apache.org/maven2/org/example/package/2.0.0/package-2.0.0.pom",
   },
+  Object {
+    "headers": Object {
+      "accept-encoding": "gzip, deflate, br",
+      "host": "repo.maven.apache.org",
+      "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
+    },
+    "method": "HEAD",
+    "url": "https://repo.maven.apache.org/maven2/org/example/package/1.0.4-SNAPSHOT/package-1.0.4-SNAPSHOT.pom",
+  },
   Object {
     "headers": Object {
       "accept-encoding": "gzip, deflate, br",
@@ -151,6 +160,9 @@ Object {
   "name": "package",
   "registryUrl": "https://repo.maven.apache.org/maven2",
   "releases": Array [
+    Object {
+      "version": "0.0.1",
+    },
     Object {
       "releaseTimestamp": "2020-01-01T01:00:00.000Z",
       "version": "1.0.0",
@@ -229,8 +241,8 @@ Array [
       "host": "repo.maven.apache.org",
       "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
     },
-    "method": "GET",
-    "url": "https://repo.maven.apache.org/maven2/org/example/package/1.0.4-SNAPSHOT/maven-metadata.xml",
+    "method": "HEAD",
+    "url": "https://repo.maven.apache.org/maven2/org/example/package/0.0.1/package-0.0.1.pom",
   },
   Object {
     "headers": Object {
@@ -274,8 +286,8 @@ Array [
       "host": "repo.maven.apache.org",
       "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
     },
-    "method": "HEAD",
-    "url": "https://repo.maven.apache.org/maven2/org/example/package/1.0.4-SNAPSHOT/package-1.0.4-SNAPSHOT.pom",
+    "method": "GET",
+    "url": "https://repo.maven.apache.org/maven2/org/example/package/1.0.4-SNAPSHOT/maven-metadata.xml",
   },
   Object {
     "headers": Object {
@@ -295,6 +307,15 @@ Array [
     "method": "HEAD",
     "url": "https://repo.maven.apache.org/maven2/org/example/package/2.0.0/package-2.0.0.pom",
   },
+  Object {
+    "headers": Object {
+      "accept-encoding": "gzip, deflate, br",
+      "host": "repo.maven.apache.org",
+      "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
+    },
+    "method": "HEAD",
+    "url": "https://repo.maven.apache.org/maven2/org/example/package/1.0.4-SNAPSHOT/package-1.0.4-SNAPSHOT.pom",
+  },
   Object {
     "headers": Object {
       "accept-encoding": "gzip, deflate, br",
@@ -702,8 +723,8 @@ Array [
       "host": "repo.maven.apache.org",
       "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
     },
-    "method": "GET",
-    "url": "https://repo.maven.apache.org/maven2/org/example/package/1.0.4-SNAPSHOT/maven-metadata.xml",
+    "method": "HEAD",
+    "url": "https://repo.maven.apache.org/maven2/org/example/package/0.0.1/package-0.0.1.pom",
   },
   Object {
     "headers": Object {
@@ -747,8 +768,8 @@ Array [
       "host": "repo.maven.apache.org",
       "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
     },
-    "method": "HEAD",
-    "url": "https://repo.maven.apache.org/maven2/org/example/package/1.0.4-SNAPSHOT/package-1.0.4-SNAPSHOT.pom",
+    "method": "GET",
+    "url": "https://repo.maven.apache.org/maven2/org/example/package/1.0.4-SNAPSHOT/maven-metadata.xml",
   },
   Object {
     "headers": Object {
@@ -768,6 +789,15 @@ Array [
     "method": "HEAD",
     "url": "https://repo.maven.apache.org/maven2/org/example/package/2.0.0/package-2.0.0.pom",
   },
+  Object {
+    "headers": Object {
+      "accept-encoding": "gzip, deflate, br",
+      "host": "repo.maven.apache.org",
+      "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
+    },
+    "method": "HEAD",
+    "url": "https://repo.maven.apache.org/maven2/org/example/package/1.0.4-SNAPSHOT/package-1.0.4-SNAPSHOT.pom",
+  },
   Object {
     "headers": Object {
       "accept-encoding": "gzip, deflate, br",
@@ -810,8 +840,8 @@ Array [
       "host": "repo.maven.apache.org",
       "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
     },
-    "method": "GET",
-    "url": "https://repo.maven.apache.org/maven2/org/example/package/1.0.4-SNAPSHOT/maven-metadata.xml",
+    "method": "HEAD",
+    "url": "https://repo.maven.apache.org/maven2/org/example/package/0.0.1/package-0.0.1.pom",
   },
   Object {
     "headers": Object {
@@ -855,8 +885,8 @@ Array [
       "host": "repo.maven.apache.org",
       "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
     },
-    "method": "HEAD",
-    "url": "https://repo.maven.apache.org/maven2/org/example/package/1.0.4-SNAPSHOT/package-1.0.4-SNAPSHOT.pom",
+    "method": "GET",
+    "url": "https://repo.maven.apache.org/maven2/org/example/package/1.0.4-SNAPSHOT/maven-metadata.xml",
   },
   Object {
     "headers": Object {
@@ -876,6 +906,15 @@ Array [
     "method": "HEAD",
     "url": "https://repo.maven.apache.org/maven2/org/example/package/2.0.0/package-2.0.0.pom",
   },
+  Object {
+    "headers": Object {
+      "accept-encoding": "gzip, deflate, br",
+      "host": "repo.maven.apache.org",
+      "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
+    },
+    "method": "HEAD",
+    "url": "https://repo.maven.apache.org/maven2/org/example/package/1.0.4-SNAPSHOT/package-1.0.4-SNAPSHOT.pom",
+  },
   Object {
     "headers": Object {
       "accept-encoding": "gzip, deflate, br",
@@ -899,6 +938,9 @@ Array [
 
 exports[`datasource/maven/index ignores unsupported protocols 1`] = `
 Array [
+  Object {
+    "version": "0.0.1",
+  },
   Object {
     "releaseTimestamp": "2020-01-01T01:00:00.000Z",
     "version": "1.0.0",
@@ -940,8 +982,8 @@ Array [
       "host": "repo.maven.apache.org",
       "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
     },
-    "method": "GET",
-    "url": "http://repo.maven.apache.org/maven2/org/example/package/1.0.4-SNAPSHOT/maven-metadata.xml",
+    "method": "HEAD",
+    "url": "http://repo.maven.apache.org/maven2/org/example/package/0.0.1/package-0.0.1.pom",
   },
   Object {
     "headers": Object {
@@ -985,8 +1027,8 @@ Array [
       "host": "repo.maven.apache.org",
       "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
     },
-    "method": "HEAD",
-    "url": "http://repo.maven.apache.org/maven2/org/example/package/1.0.4-SNAPSHOT/package-1.0.4-SNAPSHOT.pom",
+    "method": "GET",
+    "url": "http://repo.maven.apache.org/maven2/org/example/package/1.0.4-SNAPSHOT/maven-metadata.xml",
   },
   Object {
     "headers": Object {
@@ -1006,6 +1048,15 @@ Array [
     "method": "HEAD",
     "url": "http://repo.maven.apache.org/maven2/org/example/package/2.0.0/package-2.0.0.pom",
   },
+  Object {
+    "headers": Object {
+      "accept-encoding": "gzip, deflate, br",
+      "host": "repo.maven.apache.org",
+      "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
+    },
+    "method": "HEAD",
+    "url": "http://repo.maven.apache.org/maven2/org/example/package/1.0.4-SNAPSHOT/package-1.0.4-SNAPSHOT.pom",
+  },
   Object {
     "headers": Object {
       "accept-encoding": "gzip, deflate, br",
@@ -1035,6 +1086,9 @@ Object {
   "name": "package",
   "registryUrl": "https://frontend_for_private_s3_repository/maven2",
   "releases": Array [
+    Object {
+      "version": "0.0.1",
+    },
     Object {
       "version": "1.0.0",
     },
@@ -1125,6 +1179,9 @@ Object {
   "name": "package",
   "registryUrl": "https://repo.maven.apache.org/maven2",
   "releases": Array [
+    Object {
+      "version": "0.0.1",
+    },
     Object {
       "releaseTimestamp": "2020-01-01T01:00:00.000Z",
       "version": "1.0.0",
@@ -1167,8 +1224,8 @@ Array [
       "host": "repo.maven.apache.org",
       "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
     },
-    "method": "GET",
-    "url": "https://repo.maven.apache.org/maven2/org/example/package/1.0.4-SNAPSHOT/maven-metadata.xml",
+    "method": "HEAD",
+    "url": "https://repo.maven.apache.org/maven2/org/example/package/0.0.1/package-0.0.1.pom",
   },
   Object {
     "headers": Object {
@@ -1212,8 +1269,8 @@ Array [
       "host": "repo.maven.apache.org",
       "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
     },
-    "method": "HEAD",
-    "url": "https://repo.maven.apache.org/maven2/org/example/package/1.0.4-SNAPSHOT/package-1.0.4-SNAPSHOT.pom",
+    "method": "GET",
+    "url": "https://repo.maven.apache.org/maven2/org/example/package/1.0.4-SNAPSHOT/maven-metadata.xml",
   },
   Object {
     "headers": Object {
@@ -1233,6 +1290,15 @@ Array [
     "method": "HEAD",
     "url": "https://repo.maven.apache.org/maven2/org/example/package/2.0.0/package-2.0.0.pom",
   },
+  Object {
+    "headers": Object {
+      "accept-encoding": "gzip, deflate, br",
+      "host": "repo.maven.apache.org",
+      "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
+    },
+    "method": "HEAD",
+    "url": "https://repo.maven.apache.org/maven2/org/example/package/1.0.4-SNAPSHOT/package-1.0.4-SNAPSHOT.pom",
+  },
   Object {
     "headers": Object {
       "accept-encoding": "gzip, deflate, br",
@@ -1262,6 +1328,9 @@ Object {
   "name": "package",
   "registryUrl": "https://custom.registry.renovatebot.com",
   "releases": Array [
+    Object {
+      "version": "0.0.1",
+    },
     Object {
       "releaseTimestamp": "2020-01-01T01:00:00.000Z",
       "version": "1.0.0",
@@ -1307,8 +1376,8 @@ Array [
       "host": "custom.registry.renovatebot.com",
       "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
     },
-    "method": "GET",
-    "url": "https://custom.registry.renovatebot.com/org/example/package/1.0.4-SNAPSHOT/maven-metadata.xml",
+    "method": "HEAD",
+    "url": "https://custom.registry.renovatebot.com/org/example/package/0.0.1/package-0.0.1.pom",
   },
   Object {
     "headers": Object {
@@ -1357,8 +1426,8 @@ Array [
       "host": "custom.registry.renovatebot.com",
       "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
     },
-    "method": "HEAD",
-    "url": "https://custom.registry.renovatebot.com/org/example/package/1.0.4-SNAPSHOT/package-1.0.4-SNAPSHOT.pom",
+    "method": "GET",
+    "url": "https://custom.registry.renovatebot.com/org/example/package/1.0.4-SNAPSHOT/maven-metadata.xml",
   },
   Object {
     "headers": Object {
@@ -1380,6 +1449,16 @@ Array [
     "method": "HEAD",
     "url": "https://custom.registry.renovatebot.com/org/example/package/2.0.0/package-2.0.0.pom",
   },
+  Object {
+    "headers": Object {
+      "accept-encoding": "gzip, deflate, br",
+      "authorization": "Bearer 123test",
+      "host": "custom.registry.renovatebot.com",
+      "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
+    },
+    "method": "HEAD",
+    "url": "https://custom.registry.renovatebot.com/org/example/package/1.0.4-SNAPSHOT/package-1.0.4-SNAPSHOT.pom",
+  },
   Object {
     "headers": Object {
       "accept-encoding": "gzip, deflate, br",
@@ -1411,6 +1490,9 @@ Object {
   "name": "package",
   "registryUrl": "https://repo.maven.apache.org/maven2",
   "releases": Array [
+    Object {
+      "version": "0.0.1",
+    },
     Object {
       "releaseTimestamp": "2020-01-01T01:00:00.000Z",
       "version": "1.0.0",
@@ -1462,8 +1544,8 @@ Array [
       "host": "repo.maven.apache.org",
       "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
     },
-    "method": "GET",
-    "url": "https://repo.maven.apache.org/maven2/org/example/package/1.0.4-SNAPSHOT/maven-metadata.xml",
+    "method": "HEAD",
+    "url": "https://repo.maven.apache.org/maven2/org/example/package/0.0.1/package-0.0.1.pom",
   },
   Object {
     "headers": Object {
@@ -1507,8 +1589,8 @@ Array [
       "host": "repo.maven.apache.org",
       "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
     },
-    "method": "HEAD",
-    "url": "https://repo.maven.apache.org/maven2/org/example/package/1.0.4-SNAPSHOT/package-1.0.4-SNAPSHOT.pom",
+    "method": "GET",
+    "url": "https://repo.maven.apache.org/maven2/org/example/package/1.0.4-SNAPSHOT/maven-metadata.xml",
   },
   Object {
     "headers": Object {
@@ -1528,6 +1610,15 @@ Array [
     "method": "HEAD",
     "url": "https://repo.maven.apache.org/maven2/org/example/package/2.0.0/package-2.0.0.pom",
   },
+  Object {
+    "headers": Object {
+      "accept-encoding": "gzip, deflate, br",
+      "host": "repo.maven.apache.org",
+      "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
+    },
+    "method": "HEAD",
+    "url": "https://repo.maven.apache.org/maven2/org/example/package/1.0.4-SNAPSHOT/package-1.0.4-SNAPSHOT.pom",
+  },
   Object {
     "headers": Object {
       "accept-encoding": "gzip, deflate, br",
@@ -1557,6 +1648,9 @@ Object {
   "name": "package",
   "registryUrl": "https://repo.maven.apache.org/maven2",
   "releases": Array [
+    Object {
+      "version": "0.0.1",
+    },
     Object {
       "releaseTimestamp": "2020-01-01T01:00:00.000Z",
       "version": "1.0.0",
@@ -1608,8 +1702,8 @@ Array [
       "host": "repo.maven.apache.org",
       "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
     },
-    "method": "GET",
-    "url": "https://repo.maven.apache.org/maven2/org/example/package/1.0.4-SNAPSHOT/maven-metadata.xml",
+    "method": "HEAD",
+    "url": "https://repo.maven.apache.org/maven2/org/example/package/0.0.1/package-0.0.1.pom",
   },
   Object {
     "headers": Object {
@@ -1653,8 +1747,8 @@ Array [
       "host": "repo.maven.apache.org",
       "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
     },
-    "method": "HEAD",
-    "url": "https://repo.maven.apache.org/maven2/org/example/package/1.0.4-SNAPSHOT/package-1.0.4-SNAPSHOT.pom",
+    "method": "GET",
+    "url": "https://repo.maven.apache.org/maven2/org/example/package/1.0.4-SNAPSHOT/maven-metadata.xml",
   },
   Object {
     "headers": Object {
@@ -1674,6 +1768,15 @@ Array [
     "method": "HEAD",
     "url": "https://repo.maven.apache.org/maven2/org/example/package/2.0.0/package-2.0.0.pom",
   },
+  Object {
+    "headers": Object {
+      "accept-encoding": "gzip, deflate, br",
+      "host": "repo.maven.apache.org",
+      "user-agent": "RenovateBot/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
+    },
+    "method": "HEAD",
+    "url": "https://repo.maven.apache.org/maven2/org/example/package/1.0.4-SNAPSHOT/package-1.0.4-SNAPSHOT.pom",
+  },
   Object {
     "headers": Object {
       "accept-encoding": "gzip, deflate, br",
diff --git a/lib/datasource/maven/index.spec.ts b/lib/datasource/maven/index.spec.ts
index 523ddc153ffe2c5f5d46da0eb95bf981dd1a6f78..55e573330ffd56dfe181ed9218c88568566a47b2 100644
--- a/lib/datasource/maven/index.spec.ts
+++ b/lib/datasource/maven/index.spec.ts
@@ -37,6 +37,7 @@ function mockGenericPackage(opts: MockOpts = {}) {
   const jars =
     opts.jars === undefined
       ? {
+          '0.0.1': 200,
           '1.0.0': 200,
           '1.0.1': 404,
           '1.0.2': 500,
@@ -85,9 +86,12 @@ function mockGenericPackage(opts: MockOpts = {}) {
         .map((x) => parseInt(x, 10))
         .map((x) => (x < 10 ? `0${x}` : `${x}`));
       const timestamp = `2020-01-01T${major}:${minor}:${patch}.000Z`;
+      const headers = version.startsWith('0.')
+        ? {}
+        : { 'Last-Modified': timestamp };
       scope
         .head(`/${packagePath}/${version}/${artifact}-${version}.pom`)
-        .reply(status, '', { 'Last-Modified': timestamp });
+        .reply(status, '', headers);
     });
   }
 
@@ -201,6 +205,7 @@ describe('datasource/maven/index', () => {
     );
 
     expect(releases).toMatchObject([
+      { version: '0.0.1' },
       { version: '1.0.0' },
       { version: '1.0.3-SNAPSHOT' },
       { version: '2.0.0' },