diff --git a/packages/core/src/types.ts b/packages/core/src/types.ts
index 5232984..ab6dee8 100644
--- a/packages/core/src/types.ts
+++ b/packages/core/src/types.ts
@@ -2,23 +2,10 @@
 
 export type Frontmatter = Record<string, unknown>;
 
-export interface Point {
-  line: number;
-  column: number;
-  offset?: number;
-}
-
-export interface Position {
-  start: Point;
-  end: Point;
-}
-
 export interface Diagnostic {
   severity: "warning";
   code: string;
   message: string;
-  source?: string;
-  position?: Position;
 }
 
 export interface TextNode {