diff --git a/requirements.txt b/requirements.txt
index 4d1cafb..18de40b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -10,7 +10,7 @@ biopython==1.73
 bleach==1.5.0
 blessings==1.7
 blinker==1.4
-certifi==2018.1.18
+certifi==2022.12.7
 cffi==1.11.5
 chardet==3.0.4
 click==6.7