diff --git a/requirements.txt b/requirements.txt
index f252db9..9598b71 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,6 +11,6 @@ mpmath==1.1.0
 numpy==1.17.4
 requests==2.22.0
 sympy==1.4
-urllib3==1.25.7
+urllib3==1.26.5
 Werkzeug==0.16.0
 matplotlib==3.1.2