diff --git a/librarian/cli.py b/librarian/cli.py
index bf8f28a..2a44539 100644
--- a/librarian/cli.py
+++ b/librarian/cli.py
@@ -1628,7 +1628,14 @@ def serve(
 @app.command("version", hidden=True)
 def version() -> None:
     """Show version."""
-    rprint("Librarian v0.5.0")
+    from importlib.metadata import PackageNotFoundError
+    from importlib.metadata import version as _pkg_version
+
+    try:
+        pkg_version = _pkg_version("agent-library")
+    except PackageNotFoundError:
+        pkg_version = "unknown"
+    rprint(f"Librarian v{pkg_version}")
 
 
 if __name__ == "__main__":