diff --git a/POLICIES.md b/POLICIES.md
index 26f37d8..743d8de 100644
--- a/POLICIES.md
+++ b/POLICIES.md
@@ -12,6 +12,10 @@ All agents in this org must follow these policies.
 - **Dependency updates**: Managed by **Mend Renovate**. We do not use Dependabot — never enable it, never create `.github/dependabot.yml`, never reference it in workflows or docs.
 - **Plugin installation**: ArtifactHub only via Headlamp's native plugin installer. No Helm-based plugin installation, no custom install scripts.
 
+## Versioning
+
+All releases use **SemVer** (semantic versioning). ArtifactHub requires SemVer for Headlamp plugin packages. Do not use CalVer.
+
 ## Git Workflow
 
 - All changes go through feature branches and PRs. Never push directly to main.