diff --git a/tools/wptrunner/requirements_firefox.txt b/tools/wptrunner/requirements_firefox.txt
index 222c91622d2204..0d01b1496c7e7d 100644
--- a/tools/wptrunner/requirements_firefox.txt
+++ b/tools/wptrunner/requirements_firefox.txt
@@ -1,4 +1,4 @@
-marionette_driver==3.1.0
+marionette_driver==3.2.0
 mozcrash==2.1.0
 mozdevice==4.0.3
 mozinstall==2.0.1