diff --git a/requirements.txt b/requirements.txt
index 099c56b..f2e3c04 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -22,6 +22,6 @@ requests-oauthlib==1.2.0
 rsa==4.0
 six==1.12.0
 slackclient==2.0.0
-urllib3==1.25.2
+urllib3==1.25.8
 websocket-client==0.56.0
 yarl==1.3.0