diff --git a/.github/workflows/fork_checker.yml b/.github/workflows/fork_checker.yml
index 2d247eff..4a8f807e 100644
--- a/.github/workflows/fork_checker.yml
+++ b/.github/workflows/fork_checker.yml
@@ -14,7 +14,7 @@ jobs:
         strategy:
           fail-fast: false
           matrix:
-            branches: [foxy, galactic, humble, master]
+            branches: [humble, iron, rolling]
         steps:
           - name: Check
             id: check
diff --git a/.github/workflows/mirror-rolling-to-master.yaml b/.github/workflows/mirror-rolling-to-master.yaml
deleted file mode 100644
index 2885eb4a..00000000
--- a/.github/workflows/mirror-rolling-to-master.yaml
+++ /dev/null
@@ -1,13 +0,0 @@
-name: Mirror rolling to master
-
-on:
-  push:
-    branches: [ rolling ]
-
-jobs:
-  mirror-to-master:
-    runs-on: ubuntu-latest
-    steps:
-    - uses: zofrex/mirror-branch@v1
-      with:
-        target-branch: master