diff --git a/requirements.txt b/requirements.txt
index 62d0367..d92cf3b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-certifi==2019.3.9
+certifi==2022.12.7
 numpy==1.16.3
 pandas==0.24.2
 python-dateutil==2.8.0