diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 49df304..5d71b81 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -184,7 +184,7 @@ jobs:
             BUILD_DATE=${{ github.event.head_commit.timestamp }}
       
       - name: Install Cosign
-        uses: sigstore/cosign-installer@v3.7.0
+        uses: sigstore/cosign-installer@v4.0.0
       
       - name: Sign container image with Cosign (keyless)
         run: |