diff --git a/pyproject.toml b/pyproject.toml
index 3b48735..928d88e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -64,7 +64,7 @@ docs = [
 dev = ["pre-commit>=2.12.1"]
 tests = ["pytest==8.3.3"]
 strict = [
-    "matplotlib==3.9.2",
+    "matplotlib==3.9.3",
     "pymatgen==2024.8.9",
     "BoltzTraP2==24.9.4",
     "trimesh==4.5.3",