diff --git a/comfy-env.toml b/comfy-env.toml
index 48b6944c..1104b1c8 100644
--- a/comfy-env.toml
+++ b/comfy-env.toml
@@ -21,7 +21,7 @@ isolated = true           # Run all nodes in isolated environment
     requirements = [
         # Core
         "bpy>=4.2",
-        "numpy>=1.21.0",
+        "numpy>=1.21.0,<2",
         "scipy>=1.7.0",
         "trimesh[easy]>=4.0.0",
         "tqdm>=4.60.0",