diff --git a/pyproject.toml b/pyproject.toml
index bd9beee..56f24d7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -13,7 +13,6 @@ classifiers = [
     "Programming Language :: Python :: 3.12",
     "Operating System :: OS Independent",
     "Intended Audience :: Developers",
-    "Topic :: Crosstabulation",
     "Topic :: Software Development :: Libraries :: Python Modules",
     "License :: OSI Approved :: GNU Lesser General Public License v3 (LGPLv3)",
 ]