diff --git a/.forgejo/workflows/build.yaml b/.forgejo/workflows/build.yaml
index d2b0173..b238191 100644
--- a/.forgejo/workflows/build.yaml
+++ b/.forgejo/workflows/build.yaml
@@ -10,7 +10,7 @@ jobs:
   build:
     runs-on: debian
     container:
-      image: forge.hornwitser.no/hornwitser/builder:test
+      image: forge.hornwitser.no/hornwitser/builder:test@sha256:033f6196715cfca40a10a2bf75d95ea3f4d3d863ca4f2604d9a0fc29750eb1fb
     steps:
       -
         name: debug