diff --git a/pyproject.toml b/pyproject.toml
index 736637d..0449867 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -14,6 +14,20 @@ keywords = ["heartbeat", "monitoring", "dns", "websocket", "system-monitoring"]
 authors = [
   { name = "Andreas Wrede" }
 ]
+classifiers = [
+  "Programming Language :: Python :: 3",
+  "Programming Language :: Python :: 3.11",
+  "Programming Language :: Python :: 3.12",
+  "Programming Language :: Python :: 3.13",
+  "Operating System :: POSIX :: Linux",
+  "Operating System :: POSIX :: BSD",
+  "Topic :: System :: Monitoring",
+  "Topic :: System :: Networking :: Monitoring",
+  "License :: OSI Approved :: MIT License",
+]
+
+[project.urls]
+Repository = "https://git.wrede.ca/andreas/heartbeat"
 
 # Core dependencies (required for both client and server)
 dependencies = [