diff --git a/requirements.txt b/requirements.txt
index 36b78f3..5b047b9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,7 +13,7 @@ cycler==0.10.0
 decorator==4.3.2
 defer==1.0.6
 distro-info==0.18
-httplib2==0.9.2
+httplib2==0.18.0
 idna==2.6
 keyring==10.6.0
 keyrings.alt==3.0