diff --git a/modules/webstack.nix b/modules/webstack.nix
index 5df718f..a47e379 100644
--- a/modules/webstack.nix
+++ b/modules/webstack.nix
@@ -178,7 +178,7 @@
   # PostgreSQL databases configuration
   services.postgresql = {
     enable = true;
-    package = pkgs.postgresql_11;
+    package = pkgs.postgresql_15;
     authentication = lib.mkForce ''
       # Generated file; do not edit!
       # TYPE  DATABASE        USER            ADDRESS                 METHOD