diff --git a/docs/requirements.txt b/docs/requirements.txt
index 2d9ed99..11e75a7 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -16,7 +16,7 @@ docutils==0.20.1
     # via
     #   sphinx
     #   sphinx-rtd-theme
-idna==3.6
+idna==3.7
     # via requests
 imagesize==1.4.1
     # via sphinx