diff --git a/pyproject.toml b/pyproject.toml
index e621942..724582f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -39,6 +39,7 @@ dependencies = [
     "torch",
     "numpy",
     "einops",
+    "torch_image_lerp",
 ]
 
 # https://peps.python.org/pep-0621/#dependencies-optional-dependencies