diff --git a/src/types.ts b/src/types.ts
index f3d9e65..8f466f1 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -23,6 +23,6 @@ export const COLUMNS = {
   SHORT_DE: 64,
   SHORT_EN: 65,
   RECOMMENDED_AGE: 67,
-  CLASSIFICATION: 1, // Classification
-  ITEM_AVAILABLE: 14  // Item Available
+  CLASSIFICATION: 11, // Column L (index 11)
+  ITEM_AVAILABLE: 14  // Column O (index 14)
 };