diff --git a/requirements.txt b/requirements.txt
index 668b294..5249c7c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-certifi==2018.10.15
+certifi==2019.6.16
 chardet==3.0.4
 Click==7.0
 Flask==1.0.3