diff --git a/dev_tools/requirements/envs/dev.env.txt b/dev_tools/requirements/envs/dev.env.txt
index 3ee5a8887..6ea1fcde1 100644
--- a/dev_tools/requirements/envs/dev.env.txt
+++ b/dev_tools/requirements/envs/dev.env.txt
@@ -45,7 +45,7 @@ execnet==2.1.1
     # via pytest-xdist
 fastjsonschema==2.21.1
     # via nbformat
-fonttools==4.58.1
+fonttools==4.61.0
     # via matplotlib
 h5py==3.13.0
     # via
diff --git a/dev_tools/requirements/envs/format.env.txt b/dev_tools/requirements/envs/format.env.txt
index b1cd896b1..4ca9528c7 100644
--- a/dev_tools/requirements/envs/format.env.txt
+++ b/dev_tools/requirements/envs/format.env.txt
@@ -44,7 +44,7 @@ duet==0.2.9
     # via
     #   -c envs/dev.env.txt
     #   cirq-core
-fonttools==4.58.1
+fonttools==4.61.0
     # via
     #   -c envs/dev.env.txt
     #   matplotlib
diff --git a/dev_tools/requirements/envs/mypy.env.txt b/dev_tools/requirements/envs/mypy.env.txt
index b920ea66e..358fa6b71 100644
--- a/dev_tools/requirements/envs/mypy.env.txt
+++ b/dev_tools/requirements/envs/mypy.env.txt
@@ -36,7 +36,7 @@ duet==0.2.9
     # via
     #   -c envs/dev.env.txt
     #   cirq-core
-fonttools==4.58.1
+fonttools==4.61.0
     # via
     #   -c envs/dev.env.txt
     #   matplotlib
diff --git a/dev_tools/requirements/envs/pylint.env.txt b/dev_tools/requirements/envs/pylint.env.txt
index a2939d2b0..d58b4d275 100644
--- a/dev_tools/requirements/envs/pylint.env.txt
+++ b/dev_tools/requirements/envs/pylint.env.txt
@@ -66,7 +66,7 @@ fastjsonschema==2.21.1
     # via
     #   -c envs/dev.env.txt
     #   nbformat
-fonttools==4.58.1
+fonttools==4.61.0
     # via
     #   -c envs/dev.env.txt
     #   matplotlib
diff --git a/dev_tools/requirements/envs/pytest-extra.env.txt b/dev_tools/requirements/envs/pytest-extra.env.txt
index f93ea88f5..48d910490 100644
--- a/dev_tools/requirements/envs/pytest-extra.env.txt
+++ b/dev_tools/requirements/envs/pytest-extra.env.txt
@@ -58,7 +58,7 @@ fastjsonschema==2.21.1
     # via
     #   -c envs/dev.env.txt
     #   nbformat
-fonttools==4.58.1
+fonttools==4.61.0
     # via
     #   -c envs/dev.env.txt
     #   matplotlib
diff --git a/dev_tools/requirements/envs/pytest.env.txt b/dev_tools/requirements/envs/pytest.env.txt
index 1dd9fd291..cbf32a83b 100644
--- a/dev_tools/requirements/envs/pytest.env.txt
+++ b/dev_tools/requirements/envs/pytest.env.txt
@@ -54,7 +54,7 @@ fastjsonschema==2.21.1
     # via
     #   -c envs/dev.env.txt
     #   nbformat
-fonttools==4.58.1
+fonttools==4.61.0
     # via
     #   -c envs/dev.env.txt
     #   matplotlib