diff --git a/requirements.txt b/requirements.txt
index 28fbbbb..6e16847 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,7 +12,7 @@ google-auth-httplib2==0.0.3
 google-auth-oauthlib==0.4.1
 googleapis-common-protos==1.51.0
 greenlet==0.4.15
-httplib2==0.18.0
+httplib2==0.19.0
 idna==2.9
 importlib-metadata==1.7.0
 iniconfig==1.0.1