diff --git a/.github/workflows/update-index.yaml b/.github/workflows/update-index.yaml
index 317d8b8..2dd4c79 100644
--- a/.github/workflows/update-index.yaml
+++ b/.github/workflows/update-index.yaml
@@ -144,7 +144,7 @@ jobs:
       - name: Install Helm
         uses: azure/setup-helm@v5
         with:
-          version: 'v3.22.1'
+          version: 'v4.3.1'
 
       - name: Add Helm repositories
         run: |
diff --git a/.github/workflows/validate-charts.yaml b/.github/workflows/validate-charts.yaml
index 01cd42a..c1c901b 100644
--- a/.github/workflows/validate-charts.yaml
+++ b/.github/workflows/validate-charts.yaml
@@ -14,7 +14,7 @@ permissions:
 # Tool versions for both CI and the local checks in CONTRIBUTING.md.
 env:
   PYTHON_VERSION: '3.15'
-  HELM_VERSION: 'v3.22.1'
+  HELM_VERSION: 'v4.3.1'
 
 jobs:
   validate: