diff --git a/requirements-dev.txt b/requirements-dev.txt
index b0ea8ee5..f010b6d3 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -13,7 +13,7 @@ build==1.3.0
 
 bumpver==2025.1131
 
-certifi==2025.8.3 ; python_version >= '3.6'
+certifi==2026.10.19 ; python_version >= '3.6'
 
 cffi==1.17.1 ; os_name == 'nt' and implementation_name != 'pypy'