diff --git a/extra/libcbor/doc/source/requirements.txt b/extra/libcbor/doc/source/requirements.txt
index 461bb7e804d2..f09e551ff5e1 100644
--- a/extra/libcbor/doc/source/requirements.txt
+++ b/extra/libcbor/doc/source/requirements.txt
@@ -7,7 +7,7 @@ chardet==3.0.4
 Click==7.0
 docutils==0.16
 Flask==1.1.1
-idna==2.9
+idna==3.7
 imagesize==1.2.0
 itsdangerous==1.1.0
 Jinja2==2.10.1