diff --git a/.github/workflows/helm-chart-release.yml b/.github/workflows/helm-chart-release.yml
index e51125d222..9673bc8c5f 100644
--- a/.github/workflows/helm-chart-release.yml
+++ b/.github/workflows/helm-chart-release.yml
@@ -38,11 +38,14 @@ jobs:
       - name: Set up Helm
         uses: azure/setup-helm@dda3372f752e03dde6b3237bc9431cdc2f7a02a2 # v5.0.0
 
-      - name: Set appVersion from release tag
+      - name: Set chart version and appVersion from release tag
         run: |
-          RELEASE_TAG="${GITHUB_EVENT_RELEASE_TAG_NAME}"
-          echo "Setting appVersion to ${RELEASE_TAG}"
-          sed -i "s/^appVersion:.*/appVersion: \"${RELEASE_TAG}\"/" ${{ env.CHART_PATH }}/Chart.yaml
+          # Strip any leading "v" so the chart version is valid SemVer 2.
+          RELEASE_TAG="${GITHUB_EVENT_RELEASE_TAG_NAME#v}"
+          echo "Setting chart version and appVersion to ${RELEASE_TAG}"
+          # Publish an immutable chart version per release instead of the static
+          # 0.0.1 in source, so every release is a distinct, addressable artifact.
+          yq -i ".version = \"${RELEASE_TAG}\" | .appVersion = \"${RELEASE_TAG}\"" ${{ env.CHART_PATH }}/Chart.yaml
         env:
           GITHUB_EVENT_RELEASE_TAG_NAME: ${{ github.event.release.tag_name }}