diff --git a/pyproject.toml b/pyproject.toml
index 260826aa..074bbd7b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -29,6 +29,8 @@ dependencies = [
     "numpy",
     "ujson",
     "packaging",
+    "universal-pathlib"
+
 ]
 
 [project.optional-dependencies]