diff --git a/requirements.txt b/requirements.txt
index 6dab409..09ae05c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -27,7 +27,7 @@ defusedxml==0.7.1
     # via interaction-devkit (pyproject.toml)
 fiona==1.9.4.post1
     # via geopandas
-fonttools==4.40.0
+fonttools==4.42.1
     # via matplotlib
 geopandas==0.13.2
     # via interaction-devkit (pyproject.toml)