diff --git a/requirements.txt b/requirements.txt
index 9802000..edc19f7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ certifi==2018.10.15
 chardet==3.0.4
 cssselect==1.0.3
 future==0.16.0
-idna==2.7
+idna==3.1
 lxml==4.2.5
 macholib==1.11
 pefile==2018.8.8