diff --git a/requirements.txt b/requirements.txt
index 7f8938d..173ea49 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 beautifulsoup4==4.6.3
-certifi==2018.8.13
+certifi==2018.8.24
 chardet==3.0.4
 click==6.7
 cssmin==0.2.0