diff --git a/infra/overlays/upc-dev/vaultwarden-postgresql/resources/postgresql.yaml b/infra/overlays/upc-dev/vaultwarden-postgresql/resources/postgresql.yaml
index 8ed617e..f638543 100644
--- a/infra/overlays/upc-dev/vaultwarden-postgresql/resources/postgresql.yaml
+++ b/infra/overlays/upc-dev/vaultwarden-postgresql/resources/postgresql.yaml
@@ -67,21 +67,17 @@ spec:
         livenessProbe:
           exec:
             command:
-            - pg_isready
-            - -U
-            - $(POSTGRES_USER)
-            - -d
-            - vaultwarden
+            - sh
+            - -c
+            - pg_isready -U "$POSTGRES_USER" -d vaultwarden
           initialDelaySeconds: 30
           periodSeconds: 10
         readinessProbe:
           exec:
             command:
-            - pg_isready
-            - -U
-            - $(POSTGRES_USER)
-            - -d
-            - vaultwarden
+            - sh
+            - -c
+            - pg_isready -U "$POSTGRES_USER" -d vaultwarden
           initialDelaySeconds: 5
           periodSeconds: 5
         resources: