diff --git a/requirements.txt b/requirements.txt
index f8b347e..e44a1cb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -34,7 +34,7 @@ sphinxcontrib-qthelp==1.0.2
 sphinxcontrib-serializinghtml==1.1.3
 toml==0.10.0
 tox==3.12.1
-urllib3==1.25.3
+urllib3==1.26.5
 virtualenv==16.6.0
 wcwidth==0.1.7
 zipp==0.5.1