diff --git a/pyproject.toml b/pyproject.toml
index bf698e5..ce54cee 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -17,7 +17,7 @@ classifiers = [
     "License :: OSI Approved :: BSD License",
     "Natural Language :: English",
 ]
-dependencies = ["typing", "numpy", "pandas"]
+dependencies = ["typing", "numpy", "pandas", "msca"]
 
 [project.optional-dependencies]
 test = ["pytest", "pytest-cov"]