diff --git a/requirements.txt b/requirements.txt
index 74d640f..936459a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,7 @@ scikit-learn==0.21.3
 scipy==1.3.1
 six==1.10.0
 sympy==1.4
-urllib3==1.26.5
+urllib3==1.26.17
 xlrd==1.2.0
 xlutils==2.0.0
 xlwt==1.3.0