diff --git a/requirements.txt b/requirements.txt
index b59f5d6409b..187e3c218ab 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -85,7 +85,7 @@ executing==2.2.1
     # via stack-data
 fastjsonschema==2.22.2
     # via nbformat
-fonttools==4.63.0
+fonttools==4.64.0
     # via matplotlib
 fsspec==2026.7.0
     # via dask