diff --git a/requirements_dev.txt b/requirements_dev.txt
index dde99d2..ac2f636 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -32,6 +32,6 @@ snowballstemmer==1.2.1
 Sphinx==1.8.4
 sphinxcontrib-websupport==1.1.0
 tox==3.7.0
-urllib3==1.24.1
+urllib3==1.24.2
 virtualenv==16.4.0
 watchdog==0.9.0