diff --git a/requirements.txt b/requirements.txt
index e65ea06d..a5fe8205 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ chardet==3.0.4
 Deprecated==1.2.10
 docutils==0.16
 GDAL==2.3.1
-idna==2.10
+idna==3.7
 imagesize==1.2.0
 Jinja2==3.1.3
 lxml>=4.6.3