diff --git a/charts/quickstart-openshift/values-pr.yaml b/charts/quickstart-openshift/values-pr.yaml
index a84581ebf..708a23f84 100644
--- a/charts/quickstart-openshift/values-pr.yaml
+++ b/charts/quickstart-openshift/values-pr.yaml
@@ -326,7 +326,7 @@ bitnami-pg:
   image:
     registry: ghcr.io
     repository: bcgov/nr-containers/bitnami/postgresql
-    tag: 16.0.0
+    tag: 15.4.0
   auth:
     username: quickstart
     password: default # overridden at deployment
diff --git a/charts/quickstart-openshift/values.yaml b/charts/quickstart-openshift/values.yaml
index 8f77ca039..b2e7955d4 100644
--- a/charts/quickstart-openshift/values.yaml
+++ b/charts/quickstart-openshift/values.yaml
@@ -318,7 +318,7 @@ bitnami-pg:
   image:
     registry: ghcr.io
     repository: bcgov/nr-containers/bitnami/postgresql
-    tag: 16.0.0
+    tag: 15.4.0
   auth:
     username: quickstart
     password: default # overridden at deployment