diff --git a/packages/techdocs-common/src/stages/generate/helpers.test.ts b/packages/techdocs-common/src/stages/generate/helpers.test.ts
index 83ccbbffab..48a48986f2 100644
--- a/packages/techdocs-common/src/stages/generate/helpers.test.ts
+++ b/packages/techdocs-common/src/stages/generate/helpers.test.ts
@@ -303,7 +303,7 @@ describe('helpers', () => {
       const updatedMkdocsYml = await fs.readFile('/mkdocs.yml');
 
       expect(updatedMkdocsYml.toString()).toContain(
-        "repo_url: 'https://github.com/backstage/backstage'",
+        'repo_url: https://github.com/backstage/backstage',
       );
     });
 
@@ -322,10 +322,10 @@ describe('helpers', () => {
       const updatedMkdocsYml = await fs.readFile('/mkdocs_with_repo_url.yml');
 
       expect(updatedMkdocsYml.toString()).toContain(
-        "repo_url: 'https://github.com/backstage/backstage'",
+        'repo_url: https://github.com/backstage/backstage',
       );
       expect(updatedMkdocsYml.toString()).not.toContain(
-        "repo_url: 'https://github.com/neworg/newrepo'",
+        'repo_url: https://github.com/neworg/newrepo',
       );
     });
   });
diff --git a/packages/techdocs-common/src/stages/generate/helpers.ts b/packages/techdocs-common/src/stages/generate/helpers.ts
index dde61b2359..16f5b26632 100644
--- a/packages/techdocs-common/src/stages/generate/helpers.ts
+++ b/packages/techdocs-common/src/stages/generate/helpers.ts
@@ -267,7 +267,7 @@ export const patchMkdocsYmlPreBuild = async (
   }
 
   try {
-    await fs.writeFile(mkdocsYmlPath, yaml.safeDump(mkdocsYml), 'utf8');
+    await fs.writeFile(mkdocsYmlPath, yaml.dump(mkdocsYml), 'utf8');
   } catch (error) {
     logger.warn(
       `Could not write to ${mkdocsYmlPath} after updating it before running the generator. ${error.message}`,