diff --git a/requirements.txt b/requirements.txt
index b910fcb..3bc13e6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 contourpy==1.1.0
 cycler==0.11.0
-fonttools==4.42.0
+fonttools==4.53.0
 kiwisolver==1.4.4
 matplotlib==3.7.2
 mplcursors==0.5.2