diff --git a/requirements.txt b/requirements.txt
index a167de1..668bbb9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,5 +12,5 @@ MarkupSafe==1.0
 PyMySQL==0.7.11
 requests==2.18.1
 SQLAlchemy==1.1.11
-urllib3==1.21.1
+urllib3==1.22
 Werkzeug==0.12.2