diff --git a/.forgejo/workflows/ci.yml b/.forgejo/workflows/ci.yml
index e1b175e..eb44568 100644
--- a/.forgejo/workflows/ci.yml
+++ b/.forgejo/workflows/ci.yml
@@ -9,9 +9,10 @@ on:
 jobs:
   shellcheck:
     runs-on: ubuntu-latest
+    container: ghcr.io/catthehacker/ubuntu:act-22.04
     steps:
-      - uses: https://code.forgejo.org/actions/checkout@v4
+      - uses: actions/checkout@v4
       - name: Install ShellCheck
-        run: sudo apt-get update && sudo apt-get install -y shellcheck
+        run: apt-get update && apt-get install -y shellcheck
       - name: Run ShellCheck
         run: shellcheck systab