diff --git a/.github/workflows/build-devbox.yml b/.github/workflows/build-devbox.yml
index 9040ff3..efa6c5e 100644
--- a/.github/workflows/build-devbox.yml
+++ b/.github/workflows/build-devbox.yml
@@ -89,7 +89,7 @@ jobs:
             
       # Sign container
       - name: Install cosign
-        uses: sigstore/cosign-installer@3454372f43399081ed03b604cb2d021dabca52bb # v3.8.2
+        uses: sigstore/cosign-installer@faadad0cce49287aee09b3a48701e75088a2c6ad # v4.0.0
 
       - name: Sign container image
         if: github.event_name != 'pull_request'