diff --git a/pyproject.toml b/pyproject.toml
index 1b7881f..861bf16 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -118,7 +118,6 @@ namespaces = false
     '*.gif'
 ]
 'deepecho' = ['data/demo.csv']
-'tests' = ['*']
 
 [tool.setuptools.exclude-package-data]
 '*' = [