diff --git a/requirements.txt b/requirements.txt
index 233eaef0..49a0744b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,7 +13,7 @@ funcsigs==1.0.2
 futures==3.1.1
 google-api-python-client==1.6.2
 httplib2==0.10.3
-idna==2.5
+idna==3.7
 itsdangerous==0.24
 lxml==3.6.0
 oauth2client==4.1.1