diff --git a/requirements.txt b/requirements.txt
index 13088ff..18605d4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,7 +11,7 @@ defusedxml==0.7.1 ; python_version >= "3.10" and python_version < "3.11"
 et-xmlfile==1.1.0 ; python_version >= "3.10" and python_version < "3.11"
 exceptiongroup==1.1.3 ; python_version >= "3.10" and python_version < "3.11"
 fastapi==0.103.2 ; python_version >= "3.10" and python_version < "3.11"
-fonttools==4.42.1 ; python_version >= "3.10" and python_version < "3.11"
+fonttools==4.43.0 ; python_version >= "3.10" and python_version < "3.11"
 greenlet==2.0.2 ; python_version >= "3.10" and python_version < "3.11" and (platform_machine == "aarch64" or platform_machine == "ppc64le" or platform_machine == "x86_64" or platform_machine == "amd64" or platform_machine == "AMD64" or platform_machine == "win32" or platform_machine == "WIN32")
 h11==0.14.0 ; python_version >= "3.10" and python_version < "3.11"
 idna==3.4 ; python_version >= "3.10" and python_version < "3.11"