--- a/testing/marionette/client/marionette_driver/__init__.py
+++ b/testing/marionette/client/marionette_driver/__init__.py
@@ -1,13 +1,13 @@
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
-__version__ = '2.4.0'
+__version__ = '2.5.0'
 
 from marionette_driver import (
     addons,
     by,
     date_time_value,
     decorators,
     errors,
     expected,

--- a/testing/marionette/harness/marionette_harness/__init__.py
+++ b/testing/marionette/harness/marionette_harness/__init__.py
@@ -1,13 +1,13 @@
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
-__version__ = '4.2.0'
+__version__ = '4.3.0'
 
 from .marionette_test import (
     CommonTestCase,
     expectedFailure,
     MarionetteTestCase,
     parameterized,
     run_if_e10s,
     run_if_manage_instance,

--- a/testing/marionette/harness/requirements.txt
+++ b/testing/marionette/harness/requirements.txt
@@ -1,11 +1,11 @@
 browsermob-proxy >= 0.6.0
 manifestparser >= 1.1
-marionette-driver >= 2.4.0
+marionette-driver >= 2.5.0
 mozcrash >= 0.5
 mozdevice >= 0.44
 mozinfo >= 0.8
 mozlog >= 3.0
 moznetwork >= 0.21
 mozprocess >= 0.9
 mozprofile >= 0.7
 mozrunner >= 6.13