diff --git a/.changeset/polite-pillows-accept.md b/.changeset/polite-pillows-accept.md
new file mode 100644
index 0000000000..ece7c02ee1
--- /dev/null
+++ b/.changeset/polite-pillows-accept.md
@@ -0,0 +1,5 @@
+---
+'@backstage/integration': patch
+---
+
+Rollback the lowercase replacing in GitHub integration config
diff --git a/packages/integration/src/github/GithubIntegration.test.ts b/packages/integration/src/github/GithubIntegration.test.ts
index c54d4db2ef..70f1c4a16c 100644
--- a/packages/integration/src/github/GithubIntegration.test.ts
+++ b/packages/integration/src/github/GithubIntegration.test.ts
@@ -134,24 +134,4 @@ describe('replaceGithubUrlType', () => {
       ),
     ).toBe('https://github.com/backstage/backstage/blob/tree/README.md');
   });
-  it('should replace with lowercase', () => {
-    expect(
-      replaceGithubUrlType(
-        'https://githuB.com/backstage/backstage/blob/master/README.md',
-        'edit',
-      ),
-    ).toBe('https://github.com/backstage/backstage/edit/master/README.md');
-    expect(
-      replaceGithubUrlType(
-        'https://github.com/Backstage/backstage/blob/master/README.md',
-        'edit',
-      ),
-    ).toBe('https://github.com/backstage/backstage/edit/master/README.md');
-    expect(
-      replaceGithubUrlType(
-        'https://github.com/backstage/Backstage/blob/master/README.md',
-        'edit',
-      ),
-    ).toBe('https://github.com/backstage/backstage/edit/master/README.md');
-  });
 });
diff --git a/packages/integration/src/github/GithubIntegration.ts b/packages/integration/src/github/GithubIntegration.ts
index 79d5e7f421..880a2bed21 100644
--- a/packages/integration/src/github/GithubIntegration.ts
+++ b/packages/integration/src/github/GithubIntegration.ts
@@ -95,9 +95,7 @@ export function replaceGithubUrlType(
   return url.replace(
     /\/\/([^/]+)\/([^/]+)\/([^/]+)\/(blob|tree|edit)\//,
     (_, host, owner, repo) => {
-      return `//${host.toLocaleLowerCase('en-US')}/${owner.toLocaleLowerCase(
-        'en-US',
-      )}/${repo.toLocaleLowerCase('en-US')}/${type}/`;
+      return `//${host}/${owner}/${repo}/${type}/`;
     },
   );
 }