diff --git a/pkgs/games/openttd/jgrpp.nix b/pkgs/games/openttd/jgrpp.nix
index 9c8be5e790f3..7d57d010dd67 100644
--- a/pkgs/games/openttd/jgrpp.nix
+++ b/pkgs/games/openttd/jgrpp.nix
@@ -2,13 +2,13 @@
 
 openttd.overrideAttrs (oldAttrs: rec {
   pname = "openttd-jgrpp";
-  version = "0.64.1";
+  version = "0.64.2";
 
   src = fetchFromGitHub {
     owner = "JGRennison";
     repo = "OpenTTD-patches";
     rev = "jgrpp-${version}";
-    hash = "sha256-SdtlI/b8Uz7I5z3lF0a+WBQMo/fAS75nUh4gWC9Lwuk=";
+    hash = "sha256-xZuby/brO7JX937w/jK+/bKTJHt2SK1GaG9bM6XqeiU=";
   };
   patches = [];