diff --git a/cldf/requirements.txt b/cldf/requirements.txt
index a366bbd..f611bbd 100644
--- a/cldf/requirements.txt
+++ b/cldf/requirements.txt
@@ -1,7 +1,7 @@
 appdirs==1.4.4
 Babel==2.12.1
 bs4==0.0.1
-certifi==2022.12.7
+certifi==2023.7.22
 cldfbench==1.13.0
 cldfcatalog==1.5.1
 cldfzenodo==1.1.0