diff --git a/lockfiles/py313/requirements.txt b/lockfiles/py313/requirements.txt
index a963716..845267f 100644
--- a/lockfiles/py313/requirements.txt
+++ b/lockfiles/py313/requirements.txt
@@ -14,9 +14,9 @@ beautifulsoup4==4.14.3 \
     --hash=sha256:0918bfe44902e6ad8d57732ba310582e98da931428d231a5ecb9e7c703a735bb \
     --hash=sha256:6292b1c5186d356bba669ef9f7f051757099565ad9ada5dd630bd9de5fa7fb86
     # via -r requirements.in
-certifi==2026.4.22 \
-    --hash=sha256:3cb2210c8f88ba2318d29b0388d1023c8492ff72ecdde4ebdaddbb13a31b1c4a \
-    --hash=sha256:8d455352a37b71bf76a79caa83a3d6c25afee4a385d632127b6afb3963f1c580
+certifi==2026.5.20 \
+    --hash=sha256:3c52e209ba0a4ad7aebe60436a4ab349c39e1e602e8c134221e546902ad25897 \
+    --hash=sha256:69dea482ab64caa7b9f6aba1c6bf48bb6a5448d1c0f1b17ab42ad8c763a5344d
     # via
     #   httpcore
     #   httpx