diff --git a/pyproject.toml b/pyproject.toml
index 3fc42c73..d8d600d5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -37,5 +37,5 @@ macos.archs = ["x86_64", "arm64"]
 test-skip = "*-macosx_arm64"
 
 before-test = "pip install pytest hypothesis"
-test-command = "pytest {project}/tests"
+test-command = "pytest {project}/tests --import-mode=append"