diff --git a/requirements.txt b/requirements.txt
index de63399122e..fcf65dda004 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 alabaster==1.0.0
 Babel==2.18.0
 certifi==2026.7.22
-charset-normalizer==3.4.9
+charset-normalizer==3.5.1
 docutils==0.21.2
 idna==3.18
 imagesize==2.0.0