diff --git a/pkgs/development/tools/mdk/default.nix b/pkgs/development/tools/mdk/default.nix
index 8b5bea7ac6ce..27f0063e24be 100644
--- a/pkgs/development/tools/mdk/default.nix
+++ b/pkgs/development/tools/mdk/default.nix
@@ -1,10 +1,10 @@
 { stdenv, fetchurl, intltool, pkgconfig, glib }:
 
 stdenv.mkDerivation {
-  name = "gnu-mdk-1.2.9";
+  name = "gnu-mdk-1.2.10";
   src = fetchurl {
-    url = https://ftp.gnu.org/gnu/mdk/v1.2.9/mdk-1.2.9.tar.gz;
-    sha256 = "0c24wzrzbk0l4z1p5nnxihaqra75amwmw59va44554infkfms9kc";
+    url = https://ftp.gnu.org/gnu/mdk/v1.2.10/mdk-1.2.10.tar.gz;
+    sha256 = "1rwcq2b5vvv7318j92nxc5dayj27dpfhzc4rjiv4ccvsc0x35x5h";
   };
   nativeBuildInputs = [ pkgconfig ];
   buildInputs = [ intltool glib ];