diff --git a/docs/requirements.txt b/docs/requirements.txt
index b18d7a6..048831f 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -82,7 +82,7 @@ sqlparse==0.3.0
 toml==0.10.0
 tornado==6.0.3
 traitlets==4.3.2
-urllib3==1.25.5 ; python_version >= '3.4'
+urllib3==1.26.5 ; python_version >= '3.4'
 virtualenv==16.7.5
 watchdog==0.9.0
 wcwidth==0.1.7