diff --git a/docs/source/requirements.txt b/docs/source/requirements.txt
index 486aab0..76d535d 100644
--- a/docs/source/requirements.txt
+++ b/docs/source/requirements.txt
@@ -9,7 +9,7 @@ certifi==2020.4.5.2
 cffi==1.14.0
 chardet==3.0.4
 commonmark==0.9.1
-cryptography==3.4.7
+cryptography==39.0.1
 decorator==4.4.2
 docutils==0.16
 idna==2.9