diff --git a/requirements.txt b/requirements.txt
index a5cb1c16..f5e4255c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -49,4 +49,4 @@ sortedcontainers==1.5.9
 SQLAlchemy==1.2.1
 sympy==1.1.1
 unicodecsv==0.14.1
-urllib3==1.22
+urllib3==1.26.5