diff --git a/requirements.txt b/requirements.txt
index 69c5814..474bac5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,7 @@ backcall==0.2.0
 bleach==3.3.0
 cached-property==1.5.2
 cachetools==4.2.0
-certifi==2020.12.5
+certifi==2022.12.7
 cffi==1.14.4
 chardet==4.0.0
 clodsa==1.2.42