diff --git a/requirements.txt b/requirements.txt
index df954f29f..17949df3d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 alabaster==1.0.0
 Babel==2.17.0
 certifi==2025.8.3
-charset-normalizer==3.4.2
+charset-normalizer==3.4.3
 docutils==0.21.2
 idna==3.10
 imagesize==1.4.1