diff --git a/pkgs/development/libraries/box2d/default.nix b/pkgs/development/libraries/box2d/default.nix
index 10bbd202019c..a445a0c53315 100644
--- a/pkgs/development/libraries/box2d/default.nix
+++ b/pkgs/development/libraries/box2d/default.nix
@@ -25,13 +25,13 @@ let
 in
 stdenv.mkDerivation (finalAttrs: {
   pname = "box2d";
-  version = "2.4.1";
+  version = "2.4.2";
 
   src = fetchFromGitHub {
     owner = "erincatto";
     repo = "box2d";
     rev = "v${finalAttrs.version}";
-    hash = "sha256-cL8L+WSTcswj+Bwy8kSOwuEqLyWEM6xa/j/94aBiSck=";
+    hash = "sha256-yvhpgiZpjTPeSY7Ma1bh4LwIokUUKB10v2WHlamL9D8=";
   };
 
   nativeBuildInputs = [ cmake pkg-config ];
@@ -59,7 +59,7 @@ stdenv.mkDerivation (finalAttrs: {
       --replace-fail 'b2_maxPolygonVertices	8' 'b2_maxPolygonVertices	15'
   '';
 
-  # tests are broken on 2.4.1 and 2.3.x doesn't have tests: https://github.com/erincatto/box2d/issues/677
+  # tests are broken on 2.4.2 and 2.3.x doesn't have tests: https://github.com/erincatto/box2d/issues/677
   doCheck = lib.versionAtLeast finalAttrs.version "2.4.2";
 
   meta = with lib; {