diff --git a/pkgs/development/python-modules/sleekxmpp/default.nix b/pkgs/development/python-modules/sleekxmpp/default.nix
index 7f437ec59c11..37ecc8bbb1c4 100644
--- a/pkgs/development/python-modules/sleekxmpp/default.nix
+++ b/pkgs/development/python-modules/sleekxmpp/default.nix
@@ -2,7 +2,7 @@
 
 buildPythonPackage rec {
   pname = "sleekxmpp";
-  version = "1.3.1";
+  version = "1.3.3";
 
   propagatedBuildInputs = [ dns pyasn1 ];
 
@@ -12,7 +12,7 @@ buildPythonPackage rec {
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "1krkhkvj8xw5a6c2xlf7h1rg9xdcm9d8x2niivwjahahpvbl6krr";
+    sha256 = "d213c1de71d92505f95ced0460ee0f84fdc4ddcacb7d7dd343739ed4028e5569";
   };
 
   meta = with stdenv.lib; {