diff --git a/charts/postgrest/templates/secret.yaml b/charts/postgrest/templates/secret.yaml
index 0cc2ef1..f0fddb8 100644
--- a/charts/postgrest/templates/secret.yaml
+++ b/charts/postgrest/templates/secret.yaml
@@ -5,9 +5,9 @@ metadata:
   namespace: {{ $.Release.Namespace }}
 stringData:
   db-uri.txt: |-
-    {{- .Values.postgrest.dbUri | nindent 4 }}
+    {{- required "Missing postgrest.dbUri" .Values.postgrest.dbUri | nindent 4 }}
   jwt-secret.txt: |-
-    {{- .Values.postgrest.jwtSecret | nindent 4 }}
+    {{- required "postgrest.jwtSecret" .Values.postgrest.jwtSecret | nindent 4 }}
   {{- if .Values.secret }}
     {{- toYaml .Values.secret | nindent 2 }}
   {{- end }}