diff --git a/requirements.txt b/requirements.txt
index 5707347..ab0f60a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ codecov==2.1.11
 configobj==5.0.6
 coverage==5.3.1
 dpath==2.0.1
-idna==2.10
+idna==3.0
 ply==3.11
 pyhcl==0.4.4
 python-dotenv==0.15.0