diff --git a/requirements.txt b/requirements.txt
index 96eff5c..93ce1be 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 beautifulsoup4==4.6.0
-certifi==2017.4.17
+certifi==2017.11.5
 click==6.7
 Flask==0.12.2
 future==0.16.0