diff --git a/pkgs/games/bzflag/default.nix b/pkgs/games/bzflag/default.nix
index c1d1c38990d6..1ec24e02be05 100644
--- a/pkgs/games/bzflag/default.nix
+++ b/pkgs/games/bzflag/default.nix
@@ -4,11 +4,11 @@
 
 stdenv.mkDerivation rec {
   pname = "bzflag";
-  version = "2.4.18";
+  version = "2.4.20";
 
   src = fetchurl {
     url = "https://download.bzflag.org/${pname}/source/${version}/${pname}-${version}.tar.bz2";
-    sha256 = "1gmz31wmn3f8zq1bfilkgbf4qmi4fa0c93cs76mhg8h978pm23cx";
+    sha256 = "16brxqmfiyz4j4lb8ihzjcbwqmpsms6vm3ijbp34lnw0blbwdjb2";
   };
 
   nativeBuildInputs = [ pkgconfig ];