diff --git a/requirements-asyncio.txt b/requirements-asyncio.txt
index 7bfe304eed..ff9a1ebf65 100644
--- a/requirements-asyncio.txt
+++ b/requirements-asyncio.txt
@@ -1,4 +1,4 @@
-certifi>=14.05.14  # MPL
+certifi>=2026.5.20  # MPL
 six>=1.9.0  # MIT
 python-dateutil>=2.5.3  # BSD
 pyyaml>=6.0.3  # MIT
diff --git a/requirements.txt b/requirements.txt
index ba641a60c3..6306c42290 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-certifi>=14.05.14 # MPL
+certifi>=2026.5.20 # MPL
 six>=1.9.0  # MIT
 python-dateutil>=2.5.3  # BSD
 setuptools>=21.0.0  # PSF/ZPL