diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 26b0b90..3acecac 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -55,7 +55,7 @@ jobs:
         uses: ko-build/setup-ko@d006021bd0c28d1ce33a07e7943d48b079944c8d # v0.9
 
       - name: Install Cosign
-        uses: sigstore/cosign-installer@d7543c93d881b35a8faa02e8e3605f69b7a1ce62 # v3.10.0
+        uses: sigstore/cosign-installer@faadad0cce49287aee09b3a48701e75088a2c6ad # v4.0.0
 
       - name: Build and Push Image to GHCR
         run: |