diff --git a/requirements.txt b/requirements.txt
index 29f42e2..d56420c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,5 +12,5 @@ python-telegram-bot==12.2.0
 requests==2.22.0
 six==1.13.0
 tornado==6.0.3
-urllib3==1.25.7
+urllib3==1.25.8
 pdfcrowd==4.11.0