diff --git a/.github/workflows/auth-layer-charts.yml b/.github/workflows/auth-layer-charts.yml
index e601268..11d4115 100644
--- a/.github/workflows/auth-layer-charts.yml
+++ b/.github/workflows/auth-layer-charts.yml
@@ -41,6 +41,13 @@ jobs:
       - name: Install ct
         uses: helm/chart-testing-action@v2.6.1
 
-      - name: Install chart
-        run: ct install --helm-extra-args="--set global.auth.clientSecret=abc123 --timeout 10m" --charts charts/hedera-the-graph-auth-layer --config .github/ct.yaml
+      - name: Create custom values file
+        run: |
+          cat <<EOF > custom-values.yaml
+          global:
+            auth:
+              clientSecret: abc123
+          EOF
 
+      - name: Install chart
+        run: ct install --helm-extra-args="--values custom-values.yaml --timeout 10m" --charts charts/hedera-the-graph-auth-layer --config .github/ct.yaml