diff --git a/pkgs/development/python-modules/add-trailing-comma/default.nix b/pkgs/development/python-modules/add-trailing-comma/default.nix
index b6cfbb46d701..f371ffd7943a 100644
--- a/pkgs/development/python-modules/add-trailing-comma/default.nix
+++ b/pkgs/development/python-modules/add-trailing-comma/default.nix
@@ -8,7 +8,7 @@
 
 buildPythonPackage rec {
   pname = "add-trailing-comma";
-  version = "2.3.0";
+  version = "2.4.0";
   format = "setuptools";
 
   disabled = pythonOlder "3.7";
@@ -17,7 +17,7 @@ buildPythonPackage rec {
     owner = "asottile";
     repo = pname;
     rev = "v${version}";
-    sha256 = "sha256-NEXPIkPeH6ZAm1uzqc8iRWnlLbhKmvGQGGraLu989sw=";
+    sha256 = "sha256-/dA3OwBBMjykSYaIbvhJZj9Z8/0+mfL5pW4GqgMgops=";
   };
 
   propagatedBuildInputs = [