diff --git a/events/requirements.txt b/events/requirements.txt
index 105a8ed88..c3026ea41 100644
--- a/events/requirements.txt
+++ b/events/requirements.txt
@@ -1,2 +1,2 @@
 -e ../tools #egg=code-coverage-tools
-libmozevent==1.1.20
+libmozevent==1.1.21