diff --git a/pkgs/by-name/op/openttd-jgrpp/package.nix b/pkgs/by-name/op/openttd-jgrpp/package.nix
index 61783b73c081..e853251532dc 100644
--- a/pkgs/by-name/op/openttd-jgrpp/package.nix
+++ b/pkgs/by-name/op/openttd-jgrpp/package.nix
@@ -7,13 +7,13 @@
 
 openttd.overrideAttrs (oldAttrs: rec {
   pname = "openttd-jgrpp";
-  version = "0.73.0";
+  version = "0.73.1";
 
   src = fetchFromGitHub {
     owner = "JGRennison";
     repo = "OpenTTD-patches";
     rev = "jgrpp-${version}";
-    hash = "sha256-eFUKJSpHLhyGXvKo/uSB01+5nGv5Y7yUTIU3U81Qx5U=";
+    hash = "sha256-L99u4J/yiaQB2TTP63gIX6N4OrVOuM4/1bpLkCzVvXU=";
   };
   patches = [ ];