diff --git a/requirements.txt b/requirements.txt
index 8304fb8..84ef5c8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -30,6 +30,6 @@ six==1.12.0               # via bleach, cycler, pip-tools, python-dateutil, read
 tblib==1.3.2              # via zproc
 tqdm==4.31.1              # via twine
 twine==1.13.0
-urllib3==1.24.1           # via requests
+urllib3==1.24.2           # via requests
 webencodings==0.5.1       # via bleach
 zproc==0.9.5