diff --git a/pkgs/development/libraries/gdl/default.nix b/pkgs/development/libraries/gdl/default.nix
index 5b73e3d7a139..6e7e1e39b38d 100644
--- a/pkgs/development/libraries/gdl/default.nix
+++ b/pkgs/development/libraries/gdl/default.nix
@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   pname = "gdl";
-  version = "3.34.0";
+  version = "3.40.0";
 
   src = fetchurl {
     url = "mirror://gnome/sources/gdl/${lib.versions.majorMinor version}/${pname}-${version}.tar.xz";
-    sha256 = "00ldva6wg6s4wlxmisiqzyz8ihsprra7sninx2rlqk6frpq312w5";
+    sha256 = "NkHU/WadHhgYrv88+f+3iH/Fw2eFC3jCjHdeukq2pVU=";
   };
 
   nativeBuildInputs = [ pkg-config intltool ];