diff --git a/.github/actions/e2e/install-karpenter/action.yaml b/.github/actions/e2e/install-karpenter/action.yaml
index a8463f054508..834f269c78e5 100644
--- a/.github/actions/e2e/install-karpenter/action.yaml
+++ b/.github/actions/e2e/install-karpenter/action.yaml
@@ -96,5 +96,5 @@ runs:
     run: |
       helm diff upgrade --namespace kube-system \
         karpenter oci://$ECR_ACCOUNT_ID.dkr.ecr.$ECR_REGION.amazonaws.com/karpenter/snapshot/karpenter \
-        --version v0-$(git rev-parse HEAD) \
+        --version 0-$(git rev-parse HEAD) \
         --reuse-values --three-way-merge --detailed-exitcode
diff --git a/hack/release/common.sh b/hack/release/common.sh
index e226f5d51a6e..2a946a6fba8b 100644
--- a/hack/release/common.sh
+++ b/hack/release/common.sh
@@ -138,7 +138,7 @@ publishHelmChart() {
     rm "${HELM_CHART_FILE_NAME}"
     cd ..
 
-    cosignHelmChart "${RELEASE_REPO}" "${HELM_CHART_VERSION}"
+    cosignHelmChart "${RELEASE_REPO}/${CHART_NAME}" "${HELM_CHART_VERSION}"
 }
 
 cosignHelmChart() {