diff --git a/requirements.txt b/requirements.txt
index b67c7d9..0e4b2c3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 atomicwrites==1.3.0
 attrs==19.1.0
-certifi==2019.3.9
+certifi==2022.12.7
 h5py==2.9.0
 more-itertools==6.0.0
 numpy==1.16.2