diff --git a/.forgejo/workflows/renovate.yml b/.forgejo/workflows/renovate.yml
index 913b508..7351e46 100644
--- a/.forgejo/workflows/renovate.yml
+++ b/.forgejo/workflows/renovate.yml
@@ -22,7 +22,7 @@ jobs:
   renovate:
     runs-on: docker
     container:
-      image: renovate/renovate:39.91.2
+      image: renovate/renovate:39.91.2@sha256:2b565f743610bae3627c7dbd25525d54ac770fa1dbc27cca59ed90c4f997d3a4
 
     steps:
       - uses: actions/checkout@v4