diff --git a/tools/wptrunner/requirements_firefox.txt b/tools/wptrunner/requirements_firefox.txt
index 5fd08e2efa6595..59a9cd7ba3e679 100644
--- a/tools/wptrunner/requirements_firefox.txt
+++ b/tools/wptrunner/requirements_firefox.txt
@@ -1,5 +1,5 @@
 marionette_driver==3.4.0
-mozcrash==2.2.0
+mozcrash==2.2.1
 mozdevice==4.2.0
 mozinstall==2.1.0
 mozleak==0.2