diff --git a/requirements.txt b/requirements.txt
index b706915..fc5e1f1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,7 @@ chardet==3.0.4
 click==6.7
 datrie==0.7.1
 future==0.16.0
-idna==2.6
+idna==3.11
 lxml==4.1.1
 marisa-trie==0.7.4
 py3dns==3.1.0