diff --git a/.github/workflows/prune.yaml b/.github/workflows/prune.yaml
index 4595d89..8b0089f 100644
--- a/.github/workflows/prune.yaml
+++ b/.github/workflows/prune.yaml
@@ -8,6 +8,7 @@ on:
 jobs:
   prune-container-registry:
     runs-on: ubuntu-latest
+    environment: prune
     steps:
       - name: Prune
         uses: vlaurin/action-ghcr-prune@v0.6.0