diff --git a/pkgs/development/python-modules/marionette-harness/mozprofile.nix b/pkgs/development/python-modules/marionette-harness/mozprofile.nix
index a783c125af3..0ff0461c558 100644
--- a/pkgs/development/python-modules/marionette-harness/mozprofile.nix
+++ b/pkgs/development/python-modules/marionette-harness/mozprofile.nix
@@ -9,12 +9,12 @@
 
 buildPythonPackage rec {
   pname = "mozprofile";
-  version = "0.29";
+  version = "1.1.0";
   name = "${pname}-${version}";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "92af4b9f527a18997dccb60e846e1844b2428668dadf3ccb1a8cd30c706b25c1";
+    sha256 = "aa7fe7248719a224dd63cdc0498c9971d07cfc62fee7a69f51d593316b6bc1d8";
   };
 
   propagatedBuildInputs = [ mozlog mozfile mozhttpd ];