diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 07456c0f68b..0ddc19e30d1 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -14891,11 +14891,11 @@ in modules // {
 
   nevow = buildPythonPackage (rec {
     name = "nevow-${version}";
-    version = "0.11.1";
+    version = "0.14.2";
 
     src = pkgs.fetchurl {
       url = "mirror://pypi/N/Nevow/Nevow-${version}.tar.gz";
-      sha256 = "1z0y8a5q4fa2nmh0dap7cs9pp5xs3jm6q0g4vpwcw77q7jagdmw9";
+      sha256 = "0wsh40ysj5gvfc777nrdvf5vbkr606r1gh7ibvw7x8b5g8afdy3y";
       name = "${name}.tar.gz";
     };