diff --git a/requirements.txt b/requirements.txt
index 1ac2dca..bacf211 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,7 +9,7 @@ python-hmac-auth==0.4
 requests==2.13.0
 s3transfer==0.1.10
 six==1.10.0
-urllib3==1.20
+urllib3==1.26.5
 mock==2.0.0
 netaddr==0.7.19
 pytz>=2017.02