diff --git a/pkgs/development/python-modules/willow/default.nix b/pkgs/development/python-modules/willow/default.nix
index fb9182ab179..138facad701 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 = "1.1";
+  version = "1.3";
   disabled = pythonOlder "2.7";
 
   src = fetchPypi {
     pname = "Willow";
     inherit version;
-    sha256 = "818ee11803c90a0a6d49c94b0453d6266be1ef83ae00de72731c45fae4d3e78c";
+    sha256 = "0dzc3cjkwp0h3v1n94c33zr5yw5fdd6dkm6vccp9i8dncmpw912g";
   };
 
   propagatedBuildInputs = [ six pillow ];