diff --git a/pkgs/development/ocaml-modules/postgresql/default.nix b/pkgs/development/ocaml-modules/postgresql/default.nix
index 49c8a06f04dc..8c71a2321e3d 100644
--- a/pkgs/development/ocaml-modules/postgresql/default.nix
+++ b/pkgs/development/ocaml-modules/postgresql/default.nix
@@ -9,13 +9,13 @@
 
 buildDunePackage rec {
   pname = "postgresql";
-  version = "5.1.3";
+  version = "5.2.0";
 
   minimalOCamlVersion = "4.12";
 
   src = fetchurl {
     url = "https://github.com/mmottl/postgresql-ocaml/releases/download/${version}/postgresql-${version}.tbz";
-    hash = "sha256-RipVP8mj+tYwO8LrVASvVc36ZAJYjMI4x6Uj5J50Eww=";
+    hash = "sha256-uU/K7hvQljGnUzClPRdod32tpVAGd/sGqh3NqIygJ4A=";
   };
 
   nativeBuildInputs = [ pkg-config ];