diff --git a/requirements.txt b/requirements.txt
index aa11356..6609bdf 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -34,7 +34,7 @@ eth-utils==1.10.0
 Flask==2.2.2
 flask-sock==0.5.2
 Flask-SSE==1.0.0
-fonttools==4.37.4
+fonttools==4.43.0
 frozenlist==1.3.0
 h11==0.13.0
 hexbytes==0.2.2