diff --git a/docs/requirements.txt b/docs/requirements.txt
index a1cd28be6a0ae5c5e17ebedaa47406cc08ee28ee..5858e34940e111384e7304fe768e3648f7ae6647 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -10,7 +10,7 @@ babel==2.9.1
     # via sphinx
 certifi==2021.10.8
     # via requests
-charset-normalizer==2.0.4
+charset-normalizer==2.0.6
     # via requests
 commonmark==0.9.1
     # via recommonmark