diff --git a/requirements.txt b/requirements.txt
index 9d4058d..a1e53bf 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-certifi==2018.1.18
+certifi==2022.12.7
 chardet==3.0.4
 cycler==0.10.0
 Cython==0.28.2