diff --git a/constraints/ci.txt b/constraints/ci.txt
index 07a4ecf..f912dd8 100644
--- a/constraints/ci.txt
+++ b/constraints/ci.txt
@@ -10,7 +10,7 @@ build==1.5.0
 CacheControl==0.14.4
 certifi==2026.7.22
 cffi==2.1.1
-charset-normalizer==3.4.9
+charset-normalizer==3.5.0
 colorama==0.4.6
 coverage==7.15.3
 cryptography==50.0.0