diff --git a/pyproject.toml b/pyproject.toml
index 50e4e7e..363477d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -67,7 +67,7 @@ strict = [
     "matplotlib==3.9.2",
     "pymatgen==2024.8.9",
     "BoltzTraP2==24.7.2",
-    "trimesh==4.4.8",
+    "trimesh==4.4.9",
     "meshcut==0.3.0",
     "scikit-image==0.24.0",
     "monty==2024.7.30",