diff --git a/pkgs/development/python-modules/marionette-harness/moznetwork.nix b/pkgs/development/python-modules/marionette-harness/moznetwork.nix
index 3901f7c310d0..106a94b50e28 100644
--- a/pkgs/development/python-modules/marionette-harness/moznetwork.nix
+++ b/pkgs/development/python-modules/marionette-harness/moznetwork.nix
@@ -7,11 +7,11 @@
 
 buildPythonPackage rec {
   pname = "moznetwork";
-  version = "0.27";
+  version = "1.0.0";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "09ypx5wif0mly6fk3491nlzg8whg6qw24x7h9w70hykdqindbh2s";
+    sha256 = "0ws20l4ggb6mj7ycwrk5h7hj1jmj3mj0ca48k5jzsa4n042ahwrd";
   };
 
   propagatedBuildInputs = [ mozlog mozinfo ];