diff --git a/requirements.txt b/requirements.txt
index c9d1ed3..0613114 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 atomicwrites==1.3.0
 attrs==19.1.0
 biopython==1.72
-certifi==2019.3.9
+certifi==2022.12.7
 chardet==3.0.4
 click==6.7
 cycler==0.10.0