diff --git a/pkgs/servers/sql/postgresql/ext/pg_partman.nix b/pkgs/servers/sql/postgresql/ext/pg_partman.nix
index a482c0249668..b288a27baf89 100644
--- a/pkgs/servers/sql/postgresql/ext/pg_partman.nix
+++ b/pkgs/servers/sql/postgresql/ext/pg_partman.nix
@@ -2,7 +2,7 @@
 
 stdenv.mkDerivation rec {
   pname = "pg_partman";
-  version = "4.7.3";
+  version = "4.7.4";
 
   buildInputs = [ postgresql ];
 
@@ -10,7 +10,7 @@ stdenv.mkDerivation rec {
     owner  = "pgpartman";
     repo   = pname;
     rev    = "refs/tags/v${version}";
-    sha256 = "sha256-njw7/+C3nMNRKeJ4AMCNTihTVXcouH/VY2vaFeyA5v8=";
+    sha256 = "sha256-DdE/hqCrju678Xk3xXGVFhKQM3x9skQQKolNJ2/3gbs=";
   };
 
   installPhase = ''