diff --git a/requirements.txt b/requirements.txt
index 635f5f2..5120ff0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -23,6 +23,6 @@ snowballstemmer==1.2.1
 Sphinx==1.6.3
 sphinxcontrib-websupport==1.0.1
 tox==2.7.0
-urllib3==1.22
+urllib3==1.26.5
 virtualenv==15.1.0
 Werkzeug==0.12.2