diff --git a/pkgs/servers/sql/postgresql/ext/pgroonga.nix b/pkgs/servers/sql/postgresql/ext/pgroonga.nix
index b3d0bd5e2e8..fd63d7a0cc7 100644
--- a/pkgs/servers/sql/postgresql/ext/pgroonga.nix
+++ b/pkgs/servers/sql/postgresql/ext/pgroonga.nix
@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   pname = "pgroonga";
-  version = "2.2.8";
+  version = "2.2.9";
 
   src = fetchurl {
     url = "https://packages.groonga.org/source/${pname}/${pname}-${version}.tar.gz";
-    sha256 = "sha256-YDDO3t6ARbQv72QotjA7DNxOlRo2O5CYzrH+/eEzj3w=";
+    sha256 = "1dz3800jrq41l833q5ihi511wj5fiyw329g7hbxsbc9whkx7hngn";
   };
 
   nativeBuildInputs = [ pkg-config ];