diff --git a/pkgs/development/libraries/libpg_query/default.nix b/pkgs/development/libraries/libpg_query/default.nix
index 254e5ca51e99..95d615c5d24d 100644
--- a/pkgs/development/libraries/libpg_query/default.nix
+++ b/pkgs/development/libraries/libpg_query/default.nix
@@ -2,13 +2,13 @@
 
 stdenv.mkDerivation rec {
   pname = "libpg_query";
-  version = "15-4.1.0";
+  version = "15-4.2.0";
 
   src = fetchFromGitHub {
     owner = "pganalyze";
     repo = "libpg_query";
     rev = version;
-    hash = "sha256-uZdszDE0UJVeegU1bi0ISYooC4ztNv7W4UQ2gWIjrH8=";
+    hash = "sha256-2fPdvsfuXKaRwkPjsPsBBfP0+yUgYXEUzQNFZfhyvGk=";
   };
 
   nativeBuildInputs = [ which ];