diff --git a/pyproject.toml b/pyproject.toml
index b8a895e..92ff60e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -22,7 +22,7 @@ keywords = [
 classifiers = [
     "Programming Language :: Python :: 3",
     "License :: OSI Approved :: MIT License",
-    "Operating System :: Linux",
+    "Operating System :: POSIX :: Linux",
     "Operating System :: MacOS",
     "Intended Audience :: Science/Research",
     "Topic :: Scientific/Engineering",
@@ -45,4 +45,4 @@ where = ["src"]
 
 [tool.black]
 line-length = 120
-skip-magic-trailing-comma = true
\ No newline at end of file
+skip-magic-trailing-comma = true