diff --git a/requirements.txt b/requirements.txt
index f58f57b..45189a4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -15,7 +15,7 @@ google-auth-httplib2==0.0.4
 google-auth-oauthlib==0.4.1
 googleapis-common-protos==1.52.0
 greenlet==0.4.16
-httplib2==0.18.1
+httplib2==0.19.0
 ics==0.7
 idna==2.10
 ipdb==0.13.3