diff --git a/lib/modules/manager/bundler/extract.spec.ts b/lib/modules/manager/bundler/extract.spec.ts
index ca129d3a7cc2a1..78ae44e63f1e4b 100644
--- a/lib/modules/manager/bundler/extract.spec.ts
+++ b/lib/modules/manager/bundler/extract.spec.ts
@@ -31,12 +31,6 @@ const sourceBlockWithGroupsGemfile = Fixtures.get(
   'Gemfile.sourceBlockWithGroups',
 );
 
-const gitRefGemfile = codeBlock`
-gem 'foo', git: 'https://github.com/foo/foo', ref: 'fd184883048b922b176939f851338d0a4971a532'
-gem 'bar', git: 'https://github.com/bar/bar', tag: 'v1.0.0'
-gem 'baz', github: 'baz/baz', branch: 'master'
-`;
-
 describe('modules/manager/bundler/extract', () => {
   describe('extractPackageFile()', () => {
     it('returns null for empty', async () => {
@@ -203,6 +197,12 @@ describe('modules/manager/bundler/extract', () => {
   });
 
   it('parses git refs in Gemfile', async () => {
+    const gitRefGemfile = codeBlock`
+      gem 'foo', git: 'https://github.com/foo/foo', ref: 'fd184883048b922b176939f851338d0a4971a532'
+      gem 'bar', git: 'https://github.com/bar/bar', tag: 'v1.0.0'
+      gem 'baz', github: 'baz/baz', branch: 'master'
+      `;
+
     fs.readLocalFile.mockResolvedValueOnce(gitRefGemfile);
     const res = await extractPackageFile(gitRefGemfile, 'Gemfile');
     expect(res).toMatchObject({
diff --git a/lib/modules/manager/bundler/extract.ts b/lib/modules/manager/bundler/extract.ts
index 3ee0246b6449d2..2ae134a75ca2f7 100644
--- a/lib/modules/manager/bundler/extract.ts
+++ b/lib/modules/manager/bundler/extract.ts
@@ -20,7 +20,7 @@ const gemGitRefsMatchRegex = regEx(
   `^\\s*gem\\s+(['"])(?<depName>[^'"]+)['"]((\\s*,\\s*git:\\s*['"](?<gitUrl>[^'"]+)['"])|(\\s*,\\s*github:\\s*['"](?<repoName>[^'"]+)['"]))(\\s*,\\s*branch:\\s*['"](?<branchName>[^'"]+)['"])?(\\s*,\\s*ref:\\s*['"](?<refName>[^'"]+)['"])?(\\s*,\\s*tag:\\s*['"](?<tagName>[^'"]+)['"])?`,
 );
 const gemMatchRegex = regEx(
-  `^\\s*gem\\s+(['"])(?<depName>[^'"]+)(['"])(\\s*,\\s*(?<currentValue>(['"])[^'"]+['"](\\s*,\\s*['"][^'"]+['"])?))?`,
+  `^\\s*gem\\s+(['"])(?<depName>[^'"]+)(['"])(\\s*,\\s*(?<currentValue>(['"])[^'"]+['"](\\s*,\\s*['"][^'"]+['"])?))?(\\s*,\\s*source:\\s*(['"](?<registryUrl>[^'"]+)['"]|(?<sourceName>[^'"]+)))?`,
 );
 
 export async function extractPackageFile(