diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 69f0cc3c..632059f7 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -91,7 +91,7 @@ jobs:
         if: github.ref_type == 'tag'
 
       - name: Install Cosign
-        uses: sigstore/cosign-installer@3454372f43399081ed03b604cb2d021dabca52bb # v3.8.2
+        uses: sigstore/cosign-installer@faadad0cce49287aee09b3a48701e75088a2c6ad # v4.0.0
         if: github.ref_type == 'tag'
 
       - name: Setup Snapcraft