diff --git a/.github/workflows/builder.yml b/.github/workflows/builder.yml
index 2453e2922..455cee10a 100644
--- a/.github/workflows/builder.yml
+++ b/.github/workflows/builder.yml
@@ -131,7 +131,7 @@ jobs:
 
       - name: Install Cosign
         if: needs.init.outputs.publish == 'true'
-        uses: sigstore/cosign-installer@v3.9.0
+        uses: sigstore/cosign-installer@v3.9.1
         with:
           cosign-release: "v2.4.3"
 
diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 49fe360f5..f65f26def 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -299,7 +299,7 @@ jobs:
         with:
           python-version: ${{ needs.prepare.outputs.python-version }}
       - name: Install Cosign
-        uses: sigstore/cosign-installer@v3.9.0
+        uses: sigstore/cosign-installer@v3.9.1
         with:
           cosign-release: "v2.4.3"
       - name: Restore Python virtual environment