diff --git a/requirements.txt b/requirements.txt
index f55b69fc..7e457032 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,7 +11,7 @@ cycler==0.10.0
 docutils==0.16
 ete3==3.1.2
 flake8==3.8.4
-idna==2.10
+idna==3.7
 iniconfig==1.1.1
 isodate==0.6.0
 joblib==1.2.0
diff --git a/setup.py b/setup.py
index c1933fd6..1389335a 100644
--- a/setup.py
+++ b/setup.py
@@ -32,7 +32,7 @@
         "docutils==0.16",
         "ete3==3.1.2",
         "flake8==3.8.4",
-        "idna==2.10",
+        "idna==3.7",
         "iniconfig==1.1.1",
         "isodate==0.6.0",
         "joblib==1.2.0",