diff --git a/requirements.txt b/requirements.txt
index 561277a..5c55af0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -16,6 +16,6 @@ pytz==2018.5
 reportlab==3.5.4
 requests==2.19.1
 six==1.11.0
-urllib3==1.23
+urllib3==1.26.5
 webencodings==0.5.1
 xhtml2pdf==0.2.2