diff --git a/pyproject.toml b/pyproject.toml
index fbf8ade..e8bbe2c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -17,6 +17,8 @@ classifiers = [
     "Programming language :: Python :: 3",
     "License :: OSI Approved :: MIT License",
     "Operating System :: Linux",
+    "Operating System :: BSD",
+    "Operating System :: GNU"
 ]
 dependencies = [
     "APScheduler",