diff --git a/.github/workflows/build-devbox.yml b/.github/workflows/build-devbox.yml
index 9040ff3..ffc80d7 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@398d4b0eeef1380460a10c8013a76f728fb906ac # v3.9.1
 
       - name: Sign container image
         if: github.event_name != 'pull_request'