diff --git a/lib/manager/npm/update/locked-dependency/__fixtures__/package-lock.v2.json b/lib/manager/npm/update/locked-dependency/__fixtures__/package-lock.v2.json
deleted file mode 100644
index d816dd4979d9c76f71828a4dbc02f635e7da78d2..0000000000000000000000000000000000000000
--- a/lib/manager/npm/update/locked-dependency/__fixtures__/package-lock.v2.json
+++ /dev/null
@@ -1,352 +0,0 @@
-{
-  "name": "npm50",
-  "lockfileVersion": 2,
-  "requires": true,
-  "packages": {
-    "": {
-      "dependencies": {
-        "express": "4.0.0"
-      }
-    },
-    "node_modules/accepts": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.0.0.tgz",
-      "integrity": "sha1-NgTHZVhsO5z3h3tpN829RYf5R9w=",
-      "dependencies": {
-        "mime": "~1.2.11",
-        "negotiator": "~0.3.0"
-      }
-    },
-    "node_modules/buffer-crc32": {
-      "version": "0.2.1",
-      "resolved": "https://registry.npmjs.org/buffer-crc32/-/buffer-crc32-0.2.1.tgz",
-      "integrity": "sha1-vj5TgvwCttYySVasGvmKqYsIU0w=",
-      "engines": {
-        "node": "*"
-      }
-    },
-    "node_modules/cookie": {
-      "version": "0.1.0",
-      "resolved": "https://registry.npmjs.org/cookie/-/cookie-0.1.0.tgz",
-      "integrity": "sha1-kOtGndzpBchm3mh+/EMTHYgB+dA=",
-      "engines": {
-        "node": "*"
-      }
-    },
-    "node_modules/cookie-signature": {
-      "version": "1.0.3",
-      "resolved": "https://registry.npmjs.org/cookie-signature/-/cookie-signature-1.0.3.tgz",
-      "integrity": "sha1-kc2ZfMUftkFZVzjGnNoCAyj1D/k="
-    },
-    "node_modules/debug": {
-      "version": "0.8.1",
-      "resolved": "https://registry.npmjs.org/debug/-/debug-0.8.1.tgz",
-      "integrity": "sha1-IP9NJvXkIstoobrLu2EDmtjBwTA=",
-      "engines": {
-        "node": "*"
-      }
-    },
-    "node_modules/escape-html": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/escape-html/-/escape-html-1.0.1.tgz",
-      "integrity": "sha1-GBoobq05ejmpKFfPsdQwUuNWv/A="
-    },
-    "node_modules/express": {
-      "version": "4.0.0",
-      "resolved": "https://registry.npmjs.org/express/-/express-4.0.0.tgz",
-      "integrity": "sha1-J03IKTPJ9XTMOKDOXqgXK+nGsJQ=",
-      "dependencies": {
-        "accepts": "1.0.0",
-        "buffer-crc32": "0.2.1",
-        "cookie": "0.1.0",
-        "cookie-signature": "1.0.3",
-        "debug": ">= 0.7.3 < 1",
-        "escape-html": "1.0.1",
-        "fresh": "0.2.2",
-        "merge-descriptors": "0.0.2",
-        "methods": "0.1.0",
-        "parseurl": "1.0.1",
-        "path-to-regexp": "0.1.2",
-        "qs": "0.6.6",
-        "range-parser": "1.0.0",
-        "send": "0.2.0",
-        "serve-static": "1.0.1",
-        "type-is": "1.0.0",
-        "utils-merge": "1.0.0"
-      },
-      "engines": {
-        "node": ">= 0.8.0"
-      }
-    },
-    "node_modules/fresh": {
-      "version": "0.2.2",
-      "resolved": "https://registry.npmjs.org/fresh/-/fresh-0.2.2.tgz",
-      "integrity": "sha1-lzHc9WeMf660T7kDxPct9VGH+nc="
-    },
-    "node_modules/merge-descriptors": {
-      "version": "0.0.2",
-      "resolved": "https://registry.npmjs.org/merge-descriptors/-/merge-descriptors-0.0.2.tgz",
-      "integrity": "sha1-w2pSp4FDdRPFcnXzndnTF1FKyMc="
-    },
-    "node_modules/methods": {
-      "version": "0.1.0",
-      "resolved": "https://registry.npmjs.org/methods/-/methods-0.1.0.tgz",
-      "integrity": "sha1-M11Cnu/SG3us8unJIqjSvRSjDk8="
-    },
-    "node_modules/mime": {
-      "version": "1.2.11",
-      "resolved": "https://registry.npmjs.org/mime/-/mime-1.2.11.tgz",
-      "integrity": "sha1-WCA+7Ybjpe8XrtK32evUfwpg3RA="
-    },
-    "node_modules/negotiator": {
-      "version": "0.3.0",
-      "resolved": "https://registry.npmjs.org/negotiator/-/negotiator-0.3.0.tgz",
-      "integrity": "sha1-cG1pLv7d9XTVfqn7GriaT6fuj2A=",
-      "engines": {
-        "node": "*"
-      }
-    },
-    "node_modules/parseurl": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/parseurl/-/parseurl-1.0.1.tgz",
-      "integrity": "sha1-Llfc5u/dN8NRhwEDCUTCK/OIt7Q="
-    },
-    "node_modules/path-to-regexp": {
-      "version": "0.1.2",
-      "resolved": "https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-0.1.2.tgz",
-      "integrity": "sha1-mysVH5zDAYye6lDKlXKeBXgXErQ="
-    },
-    "node_modules/qs": {
-      "version": "0.6.6",
-      "resolved": "https://registry.npmjs.org/qs/-/qs-0.6.6.tgz",
-      "integrity": "sha1-bgFQmP9RlouKPIGQAdXyyJvEsQc=",
-      "engines": {
-        "node": "*"
-      }
-    },
-    "node_modules/range-parser": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/range-parser/-/range-parser-1.0.0.tgz",
-      "integrity": "sha1-pLJkz+C+XONqvjdlrJwqJIdG28A="
-    },
-    "node_modules/send": {
-      "version": "0.2.0",
-      "resolved": "https://registry.npmjs.org/send/-/send-0.2.0.tgz",
-      "integrity": "sha1-Bnq/Rc/4v/spy9t0OXJbMjiKLFg=",
-      "dependencies": {
-        "debug": "*",
-        "fresh": "~0.2.1",
-        "mime": "~1.2.9",
-        "range-parser": "~1.0.0"
-      }
-    },
-    "node_modules/serve-static": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/serve-static/-/serve-static-1.0.1.tgz",
-      "integrity": "sha1-ENy/1Es+ApGhMfyatKslqfWnikI=",
-      "dependencies": {
-        "send": "0.1.4"
-      },
-      "engines": {
-        "node": ">= 0.8.0"
-      }
-    },
-    "node_modules/serve-static/node_modules/fresh": {
-      "version": "0.2.0",
-      "resolved": "https://registry.npmjs.org/fresh/-/fresh-0.2.0.tgz",
-      "integrity": "sha1-v9lALPPfEsSkwxDHn5mj3eE9NKc="
-    },
-    "node_modules/serve-static/node_modules/range-parser": {
-      "version": "0.0.4",
-      "resolved": "https://registry.npmjs.org/range-parser/-/range-parser-0.0.4.tgz",
-      "integrity": "sha1-wEJ//vUcEKy6B4KkbJYC50T/Ygs="
-    },
-    "node_modules/serve-static/node_modules/send": {
-      "version": "0.1.4",
-      "resolved": "https://registry.npmjs.org/send/-/send-0.1.4.tgz",
-      "integrity": "sha1-vnDY0b4B3mGCGvE3gLUDRaT3Gr0=",
-      "dependencies": {
-        "debug": "*",
-        "fresh": "0.2.0",
-        "mime": "~1.2.9",
-        "range-parser": "0.0.4"
-      }
-    },
-    "node_modules/type-is": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/type-is/-/type-is-1.0.0.tgz",
-      "integrity": "sha1-T/Qk6XNJoe4ZELS/xIhZXs3EQ/w=",
-      "dependencies": {
-        "mime": "~1.2.11"
-      }
-    },
-    "node_modules/utils-merge": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/utils-merge/-/utils-merge-1.0.0.tgz",
-      "integrity": "sha1-ApT7kiu5N1FTVBxPcJYjHyh8ivg=",
-      "engines": {
-        "node": ">= 0.4.0"
-      }
-    }
-  },
-  "dependencies": {
-    "accepts": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.0.0.tgz",
-      "integrity": "sha1-NgTHZVhsO5z3h3tpN829RYf5R9w=",
-      "requires": {
-        "mime": "~1.2.11",
-        "negotiator": "~0.3.0"
-      }
-    },
-    "buffer-crc32": {
-      "version": "0.2.1",
-      "resolved": "https://registry.npmjs.org/buffer-crc32/-/buffer-crc32-0.2.1.tgz",
-      "integrity": "sha1-vj5TgvwCttYySVasGvmKqYsIU0w="
-    },
-    "cookie": {
-      "version": "0.1.0",
-      "resolved": "https://registry.npmjs.org/cookie/-/cookie-0.1.0.tgz",
-      "integrity": "sha1-kOtGndzpBchm3mh+/EMTHYgB+dA="
-    },
-    "cookie-signature": {
-      "version": "1.0.3",
-      "resolved": "https://registry.npmjs.org/cookie-signature/-/cookie-signature-1.0.3.tgz",
-      "integrity": "sha1-kc2ZfMUftkFZVzjGnNoCAyj1D/k="
-    },
-    "debug": {
-      "version": "0.8.1",
-      "resolved": "https://registry.npmjs.org/debug/-/debug-0.8.1.tgz",
-      "integrity": "sha1-IP9NJvXkIstoobrLu2EDmtjBwTA="
-    },
-    "escape-html": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/escape-html/-/escape-html-1.0.1.tgz",
-      "integrity": "sha1-GBoobq05ejmpKFfPsdQwUuNWv/A="
-    },
-    "express": {
-      "version": "4.0.0",
-      "resolved": "https://registry.npmjs.org/express/-/express-4.0.0.tgz",
-      "integrity": "sha1-J03IKTPJ9XTMOKDOXqgXK+nGsJQ=",
-      "requires": {
-        "accepts": "1.0.0",
-        "buffer-crc32": "0.2.1",
-        "cookie": "0.1.0",
-        "cookie-signature": "1.0.3",
-        "debug": ">= 0.7.3 < 1",
-        "escape-html": "1.0.1",
-        "fresh": "0.2.2",
-        "merge-descriptors": "0.0.2",
-        "methods": "0.1.0",
-        "parseurl": "1.0.1",
-        "path-to-regexp": "0.1.2",
-        "qs": "0.6.6",
-        "range-parser": "1.0.0",
-        "send": "0.2.0",
-        "serve-static": "1.0.1",
-        "type-is": "1.0.0",
-        "utils-merge": "1.0.0"
-      }
-    },
-    "fresh": {
-      "version": "0.2.2",
-      "resolved": "https://registry.npmjs.org/fresh/-/fresh-0.2.2.tgz",
-      "integrity": "sha1-lzHc9WeMf660T7kDxPct9VGH+nc="
-    },
-    "merge-descriptors": {
-      "version": "0.0.2",
-      "resolved": "https://registry.npmjs.org/merge-descriptors/-/merge-descriptors-0.0.2.tgz",
-      "integrity": "sha1-w2pSp4FDdRPFcnXzndnTF1FKyMc="
-    },
-    "methods": {
-      "version": "0.1.0",
-      "resolved": "https://registry.npmjs.org/methods/-/methods-0.1.0.tgz",
-      "integrity": "sha1-M11Cnu/SG3us8unJIqjSvRSjDk8="
-    },
-    "mime": {
-      "version": "1.2.11",
-      "resolved": "https://registry.npmjs.org/mime/-/mime-1.2.11.tgz",
-      "integrity": "sha1-WCA+7Ybjpe8XrtK32evUfwpg3RA="
-    },
-    "negotiator": {
-      "version": "0.3.0",
-      "resolved": "https://registry.npmjs.org/negotiator/-/negotiator-0.3.0.tgz",
-      "integrity": "sha1-cG1pLv7d9XTVfqn7GriaT6fuj2A="
-    },
-    "parseurl": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/parseurl/-/parseurl-1.0.1.tgz",
-      "integrity": "sha1-Llfc5u/dN8NRhwEDCUTCK/OIt7Q="
-    },
-    "path-to-regexp": {
-      "version": "0.1.2",
-      "resolved": "https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-0.1.2.tgz",
-      "integrity": "sha1-mysVH5zDAYye6lDKlXKeBXgXErQ="
-    },
-    "qs": {
-      "version": "0.6.6",
-      "resolved": "https://registry.npmjs.org/qs/-/qs-0.6.6.tgz",
-      "integrity": "sha1-bgFQmP9RlouKPIGQAdXyyJvEsQc="
-    },
-    "range-parser": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/range-parser/-/range-parser-1.0.0.tgz",
-      "integrity": "sha1-pLJkz+C+XONqvjdlrJwqJIdG28A="
-    },
-    "send": {
-      "version": "0.2.0",
-      "resolved": "https://registry.npmjs.org/send/-/send-0.2.0.tgz",
-      "integrity": "sha1-Bnq/Rc/4v/spy9t0OXJbMjiKLFg=",
-      "requires": {
-        "debug": "*",
-        "fresh": "~0.2.1",
-        "mime": "~1.2.9",
-        "range-parser": "~1.0.0"
-      }
-    },
-    "serve-static": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/serve-static/-/serve-static-1.0.1.tgz",
-      "integrity": "sha1-ENy/1Es+ApGhMfyatKslqfWnikI=",
-      "requires": {
-        "send": "0.1.4"
-      },
-      "dependencies": {
-        "fresh": {
-          "version": "0.2.0",
-          "resolved": "https://registry.npmjs.org/fresh/-/fresh-0.2.0.tgz",
-          "integrity": "sha1-v9lALPPfEsSkwxDHn5mj3eE9NKc="
-        },
-        "range-parser": {
-          "version": "0.0.4",
-          "resolved": "https://registry.npmjs.org/range-parser/-/range-parser-0.0.4.tgz",
-          "integrity": "sha1-wEJ//vUcEKy6B4KkbJYC50T/Ygs="
-        },
-        "send": {
-          "version": "0.1.4",
-          "resolved": "https://registry.npmjs.org/send/-/send-0.1.4.tgz",
-          "integrity": "sha1-vnDY0b4B3mGCGvE3gLUDRaT3Gr0=",
-          "requires": {
-            "debug": "*",
-            "fresh": "0.2.0",
-            "mime": "~1.2.9",
-            "range-parser": "0.0.4"
-          }
-        }
-      }
-    },
-    "type-is": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/type-is/-/type-is-1.0.0.tgz",
-      "integrity": "sha1-T/Qk6XNJoe4ZELS/xIhZXs3EQ/w=",
-      "requires": {
-        "mime": "~1.2.11"
-      }
-    },
-    "utils-merge": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/utils-merge/-/utils-merge-1.0.0.tgz",
-      "integrity": "sha1-ApT7kiu5N1FTVBxPcJYjHyh8ivg="
-    }
-  }
-}
diff --git a/lib/manager/npm/update/locked-dependency/index.spec.ts b/lib/manager/npm/update/locked-dependency/index.spec.ts
index 76b65e9a4e5fa38e36da22327d4549a236d94610..b5cff2f0e15a15fab4e7c7fd735987b42d3ab127 100644
--- a/lib/manager/npm/update/locked-dependency/index.spec.ts
+++ b/lib/manager/npm/update/locked-dependency/index.spec.ts
@@ -14,10 +14,6 @@ const lockFileContent = readFileSync(
   resolve(__dirname, './__fixtures__/package-lock.json'),
   'utf8'
 );
-const lockFileV2Content = readFileSync(
-  resolve(__dirname, './__fixtures__/package-lock.v2.json'),
-  'utf8'
-);
 
 const acceptsJson = JSON.parse(
   readFileSync(resolve(__dirname, './__fixtures__/accepts.json'), 'utf8')
@@ -79,6 +75,14 @@ describe(getName(__filename), () => {
         await updateLockedDependency({ ...config, lockFileContent: 'not json' })
       ).toBeNull();
     });
+    it('rejects lockFileVersion 2', async () => {
+      expect(
+        await updateLockedDependency({
+          ...config,
+          lockFileContent: lockFileContent.replace(': 1,', ': 2,'),
+        })
+      ).toBeNull();
+    });
     it('returns null if no locked deps', async () => {
       expect(await updateLockedDependency(config)).toBeNull();
     });
@@ -104,18 +108,6 @@ describe(getName(__filename), () => {
         JSON.parse(res['package-lock.json']).dependencies.mime.version
       ).toEqual('1.2.12');
     });
-    it('remediates v2 in-range', async () => {
-      const res = await updateLockedDependency({
-        ...config,
-        lockFileContent: lockFileV2Content,
-        depName: 'mime',
-        currentVersion: '1.2.11',
-        newVersion: '1.2.12',
-      });
-      expect(
-        JSON.parse(res['package-lock.json']).dependencies.mime.version
-      ).toEqual('1.2.12');
-    });
     it('fails to remediate if parent dep cannot support', async () => {
       const acceptsModified = clone(acceptsJson);
       acceptsModified.versions['2.0.0'] = {};
@@ -144,18 +136,6 @@ describe(getName(__filename), () => {
       const packageLock = JSON.parse(res['package-lock.json']);
       expect(packageLock.dependencies.express.version).toEqual('4.1.0');
     });
-    it('remediates v2 express', async () => {
-      config.depName = 'express';
-      config.currentVersion = '4.0.0';
-      config.newVersion = '4.1.0';
-      const res = await updateLockedDependency({
-        ...config,
-        lockFileContent: lockFileV2Content,
-      });
-      expect(res['package.json']).toContain('"express": "4.1.0"');
-      const packageLock = JSON.parse(res['package-lock.json']);
-      expect(packageLock.dependencies.express.version).toEqual('4.1.0');
-    });
     it('remediates mime', async () => {
       config.depName = 'mime';
       config.currentVersion = '1.2.11';
diff --git a/lib/manager/npm/update/locked-dependency/index.ts b/lib/manager/npm/update/locked-dependency/index.ts
index cb17c5cda6169aa0b95d3887bae110160dc37f0b..3560879e5acd4a01108c8b7fe5eac6a2de507997 100644
--- a/lib/manager/npm/update/locked-dependency/index.ts
+++ b/lib/manager/npm/update/locked-dependency/index.ts
@@ -54,6 +54,10 @@ export async function updateLockedDependency(
       logger.warn({ err }, 'Failed to parse files');
       return null;
     }
+    if (packageLockJson.lockfileVersion === 2) {
+      logger.debug('Only lockfileVersion 1 is supported');
+      return null;
+    }
     const lockedDeps = getLockedDependencies(
       packageLockJson,
       depName,
diff --git a/lib/workers/repository/init/vulnerability.ts b/lib/workers/repository/init/vulnerability.ts
index 482b12dd3ccb886b21ffaa395f41f5a5c77e168b..c4e5940d1f2dc5717b4f6bfa2070602157e70d4e 100644
--- a/lib/workers/repository/init/vulnerability.ts
+++ b/lib/workers/repository/init/vulnerability.ts
@@ -217,10 +217,7 @@ export async function detectVulnerabilityAlerts(
       }
     }
   }
-  logger.debug(
-    { alertPackageRules, remediations: config.remediations },
-    'alert package rules'
-  );
+  logger.debug({ alertPackageRules }, 'alert package rules');
   config.packageRules = (config.packageRules || []).concat(alertPackageRules);
   return config;
 }