diff --git a/.github/workflows/package-results.yml b/.github/workflows/package-results.yml
index 3827c43..4b8f3bc 100644
--- a/.github/workflows/package-results.yml
+++ b/.github/workflows/package-results.yml
@@ -32,7 +32,7 @@ jobs:
       run: uv sync --all-extras
 
     - name: Install cosign
-      uses: sigstore/cosign-installer@398d4b0eeef1380460a10c8013a76f728fb906ac # v3
+      uses: sigstore/cosign-installer@6f9f17788090df1f26f669e9d70d6ae9567deba6 # v4.1.2
 
     - name: Package result (with Sigstore signing)
       id: package