diff --git a/requirements.txt b/requirements.txt
index 601203b..07714fc 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -58,7 +58,7 @@ snowballstemmer==1.2.1
 Sphinx==1.7.6
 sphinxcontrib-websupport==1.1.0
 typing==3.6.4
-urllib3==1.23
+urllib3==1.26.5
 validate-email==1.3
 virtualenv==16.0.0
 virtualenv-clone==0.3.0