diff --git a/pkgs/development/python-modules/premailer/default.nix b/pkgs/development/python-modules/premailer/default.nix
index f19f2dfe265d..df9d58013025 100644
--- a/pkgs/development/python-modules/premailer/default.nix
+++ b/pkgs/development/python-modules/premailer/default.nix
@@ -4,11 +4,11 @@
 
 buildPythonPackage rec {
   pname = "premailer";
-  version = "3.3.0";
+  version = "3.6.1";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "93be4f197e9d2a87a8fe6b5b6a79b64070dbb523108dfaf2a415b4558fc78ec1";
+    sha256 = "08pshx7a110k4ll20x0xhpvyn3kkipkrbgxjjn7ncdxs54ihdhgw";
   };
 
   buildInputs = [ mock nose ];