diff --git a/requirements.txt b/requirements.txt
index 8b61ea4..68894e1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -31,7 +31,7 @@ google-auth==1.5.1
 google-auth-httplib2==0.0.3
 goose-extractor==1.0.25
 graphviz==0.9
-httplib2==0.11.3
+httplib2==0.18.0
 idna==2.7
 isort==4.3.4
 jaraco.functools==1.20