diff --git a/.github/actions/test-charts/action.yml b/.github/actions/test-charts/action.yml
index 49d10376..bb9d25ec 100644
--- a/.github/actions/test-charts/action.yml
+++ b/.github/actions/test-charts/action.yml
@@ -20,7 +20,7 @@ runs:
     - name: Set up Helm
       uses: azure/setup-helm@dda3372f752e03dde6b3237bc9431cdc2f7a02a2 # v5.0.0
       with:
-        version: v3.21.0
+        version: v4.2.1
 
     - name: Set up Python
       uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6
diff --git a/.github/workflows/lint.yaml b/.github/workflows/lint.yaml
index 2b8f977f..b5d2e221 100644
--- a/.github/workflows/lint.yaml
+++ b/.github/workflows/lint.yaml
@@ -29,7 +29,7 @@ jobs:
       - name: Set up Helm
         uses: azure/setup-helm@dda3372f752e03dde6b3237bc9431cdc2f7a02a2 # v5.0.0
         with:
-          version: v3.21.0
+          version: v4.2.1
 
       - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6
         with:
diff --git a/.github/workflows/pre-commit.yaml b/.github/workflows/pre-commit.yaml
index d50e8bd9..263fcab7 100644
--- a/.github/workflows/pre-commit.yaml
+++ b/.github/workflows/pre-commit.yaml
@@ -38,7 +38,7 @@ jobs:
       - name: Set up Helm
         uses: azure/setup-helm@dda3372f752e03dde6b3237bc9431cdc2f7a02a2 # v5.0.0
         with:
-          version: v3.21.0
+          version: v4.2.1
 
       - name: Setup helm-docs
         run: go install github.com/norwoodj/helm-docs/cmd/helm-docs@latest
diff --git a/.github/workflows/snyk.yaml b/.github/workflows/snyk.yaml
index 255d67c4..d8829d3c 100644
--- a/.github/workflows/snyk.yaml
+++ b/.github/workflows/snyk.yaml
@@ -30,7 +30,7 @@ jobs:
       - name: Set up Helm
         uses: azure/setup-helm@dda3372f752e03dde6b3237bc9431cdc2f7a02a2 # v5.0.0
         with:
-          version: v3.21.0
+          version: v4.2.1
 
       - name: Render Templates for ${{ matrix.chartConfig.name }}
         run: |
diff --git a/.github/workflows/sync-lightspeed-configs.yaml b/.github/workflows/sync-lightspeed-configs.yaml
index f671a6fb..2f77732c 100644
--- a/.github/workflows/sync-lightspeed-configs.yaml
+++ b/.github/workflows/sync-lightspeed-configs.yaml
@@ -35,7 +35,7 @@ jobs:
       - name: Set up Helm
         uses: azure/setup-helm@dda3372f752e03dde6b3237bc9431cdc2f7a02a2 # v5.0.0
         with:
-          version: v3.21.0
+          version: v4.2.1
 
       - name: Set up yq
         uses: mikefarah/yq@1b9b4ac5187171d2e5e3129be0cfa827c7f9d53d # v4.53.3
diff --git a/.github/workflows/sync-upstream-backstage.yaml b/.github/workflows/sync-upstream-backstage.yaml
index 065a4fc1..d7d829f9 100644
--- a/.github/workflows/sync-upstream-backstage.yaml
+++ b/.github/workflows/sync-upstream-backstage.yaml
@@ -27,7 +27,7 @@ jobs:
       - name: Set up Helm
         uses: azure/setup-helm@dda3372f752e03dde6b3237bc9431cdc2f7a02a2 # v5.0.0
         with:
-          version: v3.21.0
+          version: v4.2.1
 
       - name: Set up yq
         uses: mikefarah/yq@1b9b4ac5187171d2e5e3129be0cfa827c7f9d53d # v4.53.3