diff --git a/pkgs/by-name/wa/warzone2100/package.nix b/pkgs/by-name/wa/warzone2100/package.nix
index e7377243ab3d..8f860afcb344 100644
--- a/pkgs/by-name/wa/warzone2100/package.nix
+++ b/pkgs/by-name/wa/warzone2100/package.nix
@@ -46,11 +46,11 @@ in
 
 stdenv.mkDerivation (finalAttrs: {
   inherit pname;
-  version  = "4.5.4";
+  version  = "4.5.5";
 
   src = fetchurl {
     url = "mirror://sourceforge/project/warzone2100/releases/${finalAttrs.version}/warzone2100_src.tar.xz";
-    hash = "sha256-v7Odn5UJwNxdr6Pm959VgtdkFJYpN6e9f30bVXqIr8I=";
+    hash = "sha256-B/YbrnIWh+3rYtpId+hQMKA6BTpZPWRRlPxld44EgP8=";
   };
 
   buildInputs = [