diff --git a/pkgs/development/python-modules/ujson/default.nix b/pkgs/development/python-modules/ujson/default.nix
index 9c759bd41b36..d93ee9f5af70 100644
--- a/pkgs/development/python-modules/ujson/default.nix
+++ b/pkgs/development/python-modules/ujson/default.nix
@@ -8,12 +8,12 @@
 
 buildPythonPackage rec {
   pname = "ujson";
-  version = "4.0.1";
+  version = "4.0.2";
   disabled = isPyPy || (!isPy3k);
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "26cf6241b36ff5ce4539ae687b6b02673109c5e3efc96148806a7873eaa229d3";
+    sha256 = "c615a9e9e378a7383b756b7e7a73c38b22aeb8967a8bfbffd4741f7ffd043c4d";
   };
 
   nativeBuildInputs = [ setuptools_scm ];