diff --git a/pkgs/by-name/gd/gdmap/package.nix b/pkgs/by-name/gd/gdmap/package.nix
index 8e64fad0d086..0704b6ae8dc9 100644
--- a/pkgs/by-name/gd/gdmap/package.nix
+++ b/pkgs/by-name/gd/gdmap/package.nix
@@ -13,13 +13,13 @@
 
 stdenv.mkDerivation {
   pname = "gdmap";
-  version = "1.2.0";
+  version = "1.3.1";
 
   src = fetchFromGitLab {
     owner = "sjohannes";
     repo = "gdmap";
-    tag = "v1.2.0";
-    sha256 = "1p96pps4yflj6a42g61pcqpllx7vcjlh417kwjy0b4mqp16vmrzr";
+    tag = "v1.3.1";
+    sha256 = "sha256-dgZ+EDk7O+nuqrBsTPVW7BHufvkqLnWbXrIOOn7YlW4=";
   };
 
   nativeBuildInputs = [