diff --git a/clusters/yc-k8s-test/infrastructure/patches/postgresql.yaml b/clusters/yc-k8s-test/infrastructure/patches/postgresql.yaml
index 5958fa1..48e72d8 100644
--- a/clusters/yc-k8s-test/infrastructure/patches/postgresql.yaml
+++ b/clusters/yc-k8s-test/infrastructure/patches/postgresql.yaml
@@ -29,6 +29,8 @@ spec:
       prometheusRule:
         enabled: false
     primary:
+      containerSecurityContext:
+        readOnlyRootFilesystem: false
       persistence:
         storageClass: local-path
         size: 20Gi