diff --git a/lib/modules/manager/github-actions/__fixtures__/workflow_3.yml b/lib/modules/manager/github-actions/__fixtures__/workflow_3.yml
index 781bec6781fb0c6c6e81e9632831f56004c176ae..44fcd988ea5c683562f48dd7559ad6e31ada7bfc 100644
--- a/lib/modules/manager/github-actions/__fixtures__/workflow_3.yml
+++ b/lib/modules/manager/github-actions/__fixtures__/workflow_3.yml
@@ -4,6 +4,17 @@ jobs:
     steps:
       - name: Auto merge
         uses: "pascalgn/automerge-action@v0.13.1"
+
         env:
           GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
           MERGE_METHOD: squash
+
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@1e204e9a9253d643386038d443f96446fa156a97 # renovate: tag=v2.3.5 # Comment that Renovate bot has moved Comment that Renovate bot will remove later on
+      - uses: actions/checkout@v1 # Comment that Renovate bot will remove later on
+      - uses: "actions/checkout@v1.1.2" # Comment that Renovate bot will remove later on
+
+      - name: Run a one-line script
+        run: echo Hello, world!
diff --git a/lib/modules/manager/github-actions/__snapshots__/extract.spec.ts.snap b/lib/modules/manager/github-actions/__snapshots__/extract.spec.ts.snap
index 4d64e16f388d9b300b6041cc89892ce26ddfe888..a4b68ba2b5cafb0d918da6520a9723d0b9652639 100644
--- a/lib/modules/manager/github-actions/__snapshots__/extract.spec.ts.snap
+++ b/lib/modules/manager/github-actions/__snapshots__/extract.spec.ts.snap
@@ -90,6 +90,52 @@ Array [
 ]
 `;
 
+exports[`modules/manager/github-actions/extract extractPackageFile() extracts multiple action tag lines with double quotes and comments 1`] = `
+Array [
+  Object {
+    "autoReplaceStringTemplate": "{{depName}}@{{#if newDigest}}{{newDigest}}{{#if newValue}} # tag={{newValue}}{{/if}}{{/if}}{{#unless newDigest}}{{newValue}}{{/unless}}",
+    "commitMessageTopic": "{{{depName}}} action",
+    "currentValue": "v0.13.1",
+    "datasource": "github-tags",
+    "depName": "pascalgn/automerge-action",
+    "depType": "action",
+    "replaceString": "\\"pascalgn/automerge-action@v0.13.1\\"",
+    "versioning": "docker",
+  },
+  Object {
+    "autoReplaceStringTemplate": "{{depName}}@{{#if newDigest}}{{newDigest}}{{#if newValue}} # tag={{newValue}}{{/if}}{{/if}}{{#unless newDigest}}{{newValue}}{{/unless}}",
+    "commitMessageTopic": "{{{depName}}} action",
+    "currentDigest": "1e204e9a9253d643386038d443f96446fa156a97",
+    "currentValue": "v2.3.5",
+    "datasource": "github-tags",
+    "depName": "actions/checkout",
+    "depType": "action",
+    "replaceString": "actions/checkout@1e204e9a9253d643386038d443f96446fa156a97 # renovate: tag=v2.3.5",
+    "versioning": "docker",
+  },
+  Object {
+    "autoReplaceStringTemplate": "{{depName}}@{{#if newDigest}}{{newDigest}}{{#if newValue}} # tag={{newValue}}{{/if}}{{/if}}{{#unless newDigest}}{{newValue}}{{/unless}}",
+    "commitMessageTopic": "{{{depName}}} action",
+    "currentValue": "v1",
+    "datasource": "github-tags",
+    "depName": "actions/checkout",
+    "depType": "action",
+    "replaceString": "actions/checkout@v1",
+    "versioning": "docker",
+  },
+  Object {
+    "autoReplaceStringTemplate": "{{depName}}@{{#if newDigest}}{{newDigest}}{{#if newValue}} # tag={{newValue}}{{/if}}{{/if}}{{#unless newDigest}}{{newValue}}{{/unless}}",
+    "commitMessageTopic": "{{{depName}}} action",
+    "currentValue": "v1.1.2",
+    "datasource": "github-tags",
+    "depName": "actions/checkout",
+    "depType": "action",
+    "replaceString": "\\"actions/checkout@v1.1.2\\"",
+    "versioning": "docker",
+  },
+]
+`;
+
 exports[`modules/manager/github-actions/extract extractPackageFile() extracts multiple docker image lines from yaml configuration file 1`] = `
 Array [
   Object {
@@ -136,18 +182,3 @@ Array [
   },
 ]
 `;
-
-exports[`modules/manager/github-actions/extract extractPackageFile() extracts tag line with double quotes 1`] = `
-Array [
-  Object {
-    "autoReplaceStringTemplate": "{{depName}}@{{#if newDigest}}{{newDigest}}{{#if newValue}} # tag={{newValue}}{{/if}}{{/if}}{{#unless newDigest}}{{newValue}}{{/unless}}",
-    "commitMessageTopic": "{{{depName}}} action",
-    "currentValue": "v0.13.1",
-    "datasource": "github-tags",
-    "depName": "pascalgn/automerge-action",
-    "depType": "action",
-    "replaceString": "\\"pascalgn/automerge-action@v0.13.1\\"",
-    "versioning": "docker",
-  },
-]
-`;
diff --git a/lib/modules/manager/github-actions/extract.spec.ts b/lib/modules/manager/github-actions/extract.spec.ts
index 2f7e757e969b1aee59137ac516f3bc89867d58de..625b93e37317c7a797580b9b0a93cf1847937b66 100644
--- a/lib/modules/manager/github-actions/extract.spec.ts
+++ b/lib/modules/manager/github-actions/extract.spec.ts
@@ -18,7 +18,7 @@ describe('modules/manager/github-actions/extract', () => {
         res.deps.filter((d) => d.datasource === 'github-tags')
       ).toHaveLength(8);
     });
-    it('extracts tag line with double quotes', () => {
+    it('extracts multiple action tag lines with double quotes and comments', () => {
       const res = extractPackageFile(Fixtures.get('workflow_3.yml'));
       expect(res.deps).toMatchSnapshot([
         {
@@ -29,6 +29,31 @@ describe('modules/manager/github-actions/extract', () => {
           replaceString: '"pascalgn/automerge-action@v0.13.1"',
           versioning: 'docker',
         },
+        {
+          currentValue: 'v2.3.5',
+          datasource: 'github-tags',
+          depName: 'actions/checkout',
+          depType: 'action',
+          replaceString:
+            'actions/checkout@1e204e9a9253d643386038d443f96446fa156a97 # renovate: tag=v2.3.5',
+          versioning: 'docker',
+        },
+        {
+          currentValue: 'v1',
+          datasource: 'github-tags',
+          depName: 'actions/checkout',
+          depType: 'action',
+          replaceString: 'actions/checkout@v1',
+          versioning: 'docker',
+        },
+        {
+          currentValue: 'v1.1.2',
+          datasource: 'github-tags',
+          depName: 'actions/checkout',
+          depType: 'action',
+          replaceString: '"actions/checkout@v1.1.2"',
+          versioning: 'docker',
+        },
       ]);
     });
   });
diff --git a/lib/modules/manager/github-actions/extract.ts b/lib/modules/manager/github-actions/extract.ts
index 4094bf260417ae15473fe6dbf5cc105148b1e0df..222263fc400ef7b5815a287869c697f6c1e323bf 100644
--- a/lib/modules/manager/github-actions/extract.ts
+++ b/lib/modules/manager/github-actions/extract.ts
@@ -7,7 +7,7 @@ import type { PackageDependency, PackageFile } from '../types';
 
 const dockerRe = regEx(/^\s+uses: docker:\/\/([^"]+)\s*$/);
 const actionRe = regEx(
-  /^\s+-?\s+?uses: (?<replaceString>['"]?(?<depName>[\w-]+\/[\w-]+)(?<path>\/.*)?@(?<currentValue>.+?)\s*['"]?(?:#\s+(?:renovate:\s+)?tag=(?<tag>.+?))?)\s*?$/
+  /^\s+-?\s+?uses: (?<replaceString>['"]?(?<depName>[\w-]+\/[\w-]+)(?<path>\/.*)?@(?<currentValue>[^\s'"]+)['"]?(?:\s+#\s+(?:renovate:\s+)?tag=(?<tag>\S+))?)/
 );
 
 // SHA1 or SHA256, see https://github.blog/2020-10-19-git-2-29-released/