diff --git a/pyproject.toml b/pyproject.toml
index 976a91f..dda64e8 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -3,7 +3,7 @@ authors = [{ name = "Jianyuan Wang", email = "jianyuan@robots.ox.ac.uk" }]
 dependencies = [
     "torch>=2.3.1",
     "torchvision>=0.18.1",
-    "numpy==1.26.1",
+    "numpy<2",
     "Pillow",
     "huggingface_hub",
     "einops",