diff --git a/pkgs/applications/misc/mkgmap/splitter/default.nix b/pkgs/applications/misc/mkgmap/splitter/default.nix
index 1684003fb760..564867712a67 100644
--- a/pkgs/applications/misc/mkgmap/splitter/default.nix
+++ b/pkgs/applications/misc/mkgmap/splitter/default.nix
@@ -13,11 +13,11 @@ let
 in
 stdenv.mkDerivation rec {
   pname = "splitter";
-  version = "643";
+  version = "645";
 
   src = fetchurl {
     url = "https://www.mkgmap.org.uk/download/splitter-r${version}-src.tar.gz";
-    sha256 = "gyMCQAKnP4FDcHEgJiiftKhBEG9N92etpwKBnmIbzhU=";
+    sha256 = "Y9feRNDjmwUbSOwxfMIaYIycCvOBMihq5LkuKbALVDY=";
   };
 
   patches = [