diff --git a/setup.py b/setup.py
index c0df42492874be1aae15b203538b3deb1f9324a8..69f30ff36f7dbc7780cf15b9f4f6971aa54da00d 100644
--- a/setup.py
+++ b/setup.py
@@ -10,7 +10,7 @@ with open("README.md") as readme_file:
 with open("CHANGELOG.md") as history_file:
     history = history_file.read()
 
-requirements = ["numpy", "pygame", "scipy", "pytest>=3"]
+requirements = ["numpy", "pygame", "scipy", "pytest>=3", "pyyaml"]
 
 test_requirements = [
     "pytest>=3",