diff --git a/requirements.txt b/requirements.txt
index e83b1bd82..1c476ed05 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -110,7 +110,7 @@ fastjsonschema==2.21.1
     # via nbformat
 flask==3.0.3
     # via dash
-fonttools==4.53.0
+fonttools==4.61.0
     # via matplotlib
 greenlet==3.1.1 ; (python_full_version < '3.14' and platform_machine == 'AMD64') or (python_full_version < '3.14' and platform_machine == 'WIN32') or (python_full_version < '3.14' and platform_machine == 'aarch64') or (python_full_version < '3.14' and platform_machine == 'amd64') or (python_full_version < '3.14' and platform_machine == 'ppc64le') or (python_full_version < '3.14' and platform_machine == 'win32') or (python_full_version < '3.14' and platform_machine == 'x86_64')
     # via sqlalchemy
diff --git a/requirements/requirements-py310.txt b/requirements/requirements-py310.txt
index b723c52a0..576c6790a 100644
--- a/requirements/requirements-py310.txt
+++ b/requirements/requirements-py310.txt
@@ -18,7 +18,7 @@ dill==0.3.8
     # via
     #   multiprocess
     #   pathos
-fonttools==4.51.0
+fonttools==4.61.0
     # via matplotlib
 future==1.0.0
     # via uncertainties