diff --git a/requirements.txt b/requirements.txt
index 317487f..3ecf60d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -24,7 +24,7 @@ docutils==0.20.1
     #   sphinx-togglebutton
     #   sphinxcontrib-opendataservices
     #   sphinxcontrib-opendataservices-jsonschema
-idna==3.6
+idna==3.7
     # via requests
 imagesize==1.4.1
     # via sphinx