diff --git a/requirements.txt b/requirements.txt
index 3026046..e06f50d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -19,6 +19,6 @@ toml==0.10.0
 tox==3.5.3
 tqdm==4.28.1
 twine==1.12.1
-urllib3==1.24.1
+urllib3==1.26.5
 virtualenv==16.1.0
 webencodings==0.5.1