diff --git a/pkgs/development/python-modules/willow/default.nix b/pkgs/development/python-modules/willow/default.nix
index 3dafd4df44b3..4f6955c2dbdb 100644
--- a/pkgs/development/python-modules/willow/default.nix
+++ b/pkgs/development/python-modules/willow/default.nix
@@ -8,13 +8,13 @@
 
 buildPythonPackage rec {
   pname = "willow";
-  version = "1.4";
+  version = "1.4.1";
   disabled = pythonOlder "2.7";
 
   src = fetchPypi {
     pname = "Willow";
     inherit version;
-    sha256 = "0b3lh7z98nlh4yn0cmvk7bimhfk5w4qvbmjr6jn880ji9h2ixq6d";
+    sha256 = "sha256-Dfj/UoUx4AtI1Av3Ltgb6sHcgvLULlu+1K/wIYvvjA0=";
   };
 
   propagatedBuildInputs = [ six pillow ];