diff --git a/requirements.txt b/requirements.txt
index aa405fe..e3241c2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ bleach==3.2.1
 certifi==2020.12.5
 chardet==4.0.0
 docutils==0.16
-idna==2.10
+idna==3.0
 pkginfo==1.6.1
 Pygments==2.7.3
 readme-renderer==28.0