diff --git a/requirements.txt b/requirements.txt
index 8cf2414..028d7c4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,7 +9,7 @@ contextlib2==0.6.0
 distlib==0.3.0
 distro==1.4.0
 html5lib==1.0.1
-idna==2.8
+idna==3.15
 ipaddr==2.2.0
 lockfile==0.12.2
 lxml==4.6.3