diff --git a/pyproject.toml b/pyproject.toml
index 1172dc9..a6b09ea 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,5 +1,5 @@
 [build-system]
-requires = ['setuptools', 'cython >=3.0.0']
+requires = ['setuptools', 'cython >=3.0.0', 'pyscipopt >=5.1.0']
 build-backend = "setuptools.build_meta"
 
 [project]