diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 13115b4..1989485 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -31,7 +31,7 @@ env:
   # Kept in step with release.yml's setup-helm pin: the chart is packaged with the helm
   # it was linted and e2e-tested with. Renovate tracks this line through the custom
   # manager in renovate.json -- without it only release.yml moved and the two drifted.
-  HELM_VERSION: v3.22.0
+  HELM_VERSION: v4.3.0
 
 jobs:
   lint:
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 92ce8f6..89966a6 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -83,7 +83,7 @@ jobs:
         with:
           # Same major as ci.yml's HELM_VERSION: the chart is linted and e2e-tested with
           # helm 3, so it is packaged with helm 3. A helm 4 bump is a PR, not an automerge.
-          version: v3.22.0
+          version: v4.3.0
 
       - name: Work out the new chart version
         id: version