diff --git a/requirements.txt b/requirements.txt
index 61fa8ca..e5e1cde 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ annotated-types==0.7.0
 attrs==26.1.0
 bitarray==3.8.1
 blinker==1.9.0
-certifi==2026.4.22
+certifi==2026.5.20
 charset-normalizer==3.4.7
 ckzg==2.1.7
 click==8.4.1