diff --git a/requirements.txt b/requirements.txt
index ee2e2de..3f40223 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,4 +7,4 @@ idna==2.8
 mpmath==1.1.0
 requests==2.22.0
 sympy==1.4
-urllib3==1.25.3
+urllib3==1.25.8