diff --git a/pyproject.toml b/pyproject.toml
index ded8454..d65f143 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -15,7 +15,7 @@ authors = [
   { name = "Jonas Wallin" },
 ]
 license = { file = "LICENSE" }
-keywords = ["statistics", "machine learning"]
+keywords = ["statistics", "machine-learning"]
 requires-python = ">=3.7"
 dependencies = ["numpy>=1.12", "scikit-learn>=1.0", "scipy>=0.18.0"]
 classifiers = [