diff --git a/requirements.txt b/requirements.txt
index b06b3c7..ad42066 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-certifi==2019.11.28
+certifi==2020.4.5.1
 chardet==3.0.4
 idna==2.9
 Jinja2==2.11.1