diff --git a/pkgs/development/python-modules/pythondialog/default.nix b/pkgs/development/python-modules/pythondialog/default.nix
index fbd37155cdb7..3aa139b64b0c 100644
--- a/pkgs/development/python-modules/pythondialog/default.nix
+++ b/pkgs/development/python-modules/pythondialog/default.nix
@@ -6,12 +6,12 @@
 
 buildPythonPackage rec {
   pname = "pythondialog";
-  version = "3.5.2";
+  version = "3.5.3";
   disabled = !isPy3k;
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "4fc11e95540d1d5dbe0a60cd3fb7787354df85ee4b5da21f708ea46cb47bf6d6";
+    sha256 = "b2a34a8af0a6625ccbdf45cd343b854fc6c1a85231dadc80b8805db836756323";
   };
 
   patchPhase = ''