diff --git a/setup.py b/setup.py
index 8ac06c4dd..99be632db 100755
--- a/setup.py
+++ b/setup.py
@@ -37,7 +37,7 @@ install_requires = [
     "jsondiff==1.1.2",
     "aws-xray-sdk!=0.96,>=0.93",
     "responses>=0.9.0",
-    "idna<2.8,>=2.5",
+    "idna<2.9,>=2.5",
     "cfn-lint",
 ]