diff --git a/requirements-dev.txt b/requirements-dev.txt
index 1a7066d..7e4b649 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -4,5 +4,5 @@ pytest-cov==7.1.0
 codecov==2.1.13
 httpx==0.27.2
 pylint==3.3.8
-certifi>=2023.7.22 # not directly required, pinned by Snyk to avoid a vulnerability
+certifi>=2026.5.20 # not directly required, pinned by Snyk to avoid a vulnerability
 requests>=2.32.0 # not directly required, pinned by Snyk to avoid a vulnerability