diff --git a/requirements.txt b/requirements.txt
index 81e5f4e..816e6cd 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -46,7 +46,7 @@ sphinxcontrib-jsmath==1.0.1
 sphinxcontrib-qthelp==1.0.3
 sphinxcontrib-serializinghtml==1.1.4
 typed-ast==1.4.1
-urllib3==1.25.3
+urllib3==1.26.5
 virtualenv==20.0.21
 Werkzeug==0.15.6
 wrapt==1.11.2