diff --git a/pyproject.toml b/pyproject.toml
index 27348c29..d5f461ff 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -19,7 +19,7 @@ dependencies = [
   "attrs",
   "pooch",
   "tqdm",
-  "sleap-io",
+  "sleap-io @ git+https://github.com/lochhh/sleap-io.git@lochhh/support-numpy2",
   "xarray[accel,viz]",
   "PyYAML",
 ]