diff --git a/pkgs/development/python-modules/wtforms/default.nix b/pkgs/development/python-modules/wtforms/default.nix
index 410abbbb622..66667c74ef3 100644
--- a/pkgs/development/python-modules/wtforms/default.nix
+++ b/pkgs/development/python-modules/wtforms/default.nix
@@ -5,12 +5,12 @@
 }:
 
 buildPythonPackage rec {
-  version = "2.3.1";
+  version = "2.3.3";
   pname = "WTForms";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "0whrd9cqhlibm31yqhvhp9illddxf0cpgcn3v806f7ajmsri66l6";
+    sha256 = "81195de0ac94fbc8368abbaf9197b88c4f3ffd6c2719b5bf5fc9da744f3d829c";
   };
 
   propagatedBuildInputs = [ markupsafe ];