diff --git a/requirements-dev.txt b/requirements-dev.txt
index 86d5383..dd431be 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,4 +1,4 @@
-certifi==2019.3.9
+certifi==2025.10.5
 chardet==3.0.4
 entrypoints==0.3
 flake8==3.7.7