diff --git a/src/modules/sync/sync/sync.ts b/src/modules/sync/sync/sync.ts
index f6862ac..a960f98 100644
--- a/src/modules/sync/sync/sync.ts
+++ b/src/modules/sync/sync/sync.ts
@@ -10,7 +10,7 @@ import { ParserTableDefinition } from "../syncStrategy/types";
 import { SyncStrategyFactory } from "../syncStrategy/SyncStrategyFactory";
 
 
-const SQLSEAL_DATABASE_VERSION = 2;
+const SQLSEAL_DATABASE_VERSION = 3;
 
 // Global lock to prevent concurrent database recreation
 let isInitializing = false;
diff --git a/src/utils/sanitiseColumn.test.ts b/src/utils/sanitiseColumn.test.ts
index 1a4748a..edfd759 100644
--- a/src/utils/sanitiseColumn.test.ts
+++ b/src/utils/sanitiseColumn.test.ts
@@ -8,9 +8,9 @@ describe('sanitise', () => {
     })
 
     it('should sanitise reserved keywords', () => {
-        expect(sanitise('BEGIN')).toEqual('begin_')
-        expect(sanitise('AS')).toEqual('as_')
-        expect(sanitise('BEGIN AS')).toEqual('begin_as')
+        expect(sanitise('BEGIN')).toEqual('BEGIN_')
+        expect(sanitise('AS')).toEqual('AS_')
+        expect(sanitise('BEGIN AS')).toEqual('BEGIN_AS')
     })
 
     it('should properly normalise non-latin characters', () => {
@@ -18,7 +18,7 @@ describe('sanitise', () => {
         expect(sanitise('część')).toEqual('czesc')
         expect(sanitise('geändert')).toEqual('geandert')
         expect(sanitise('หมวดหมู่')).toEqual('hmwdhmuu')
-        expect(sanitise('类别')).toEqual('lei_bie')
+        expect(sanitise('类别')).toEqual('Lei_Bie')
         expect(sanitise('категория')).toEqual('kategoriia')
         expect(sanitise('カテゴリ')).toEqual('kategori')
         expect(sanitise('ノートタイプ')).toEqual('nototaipu')
diff --git a/src/utils/sanitiseColumn.ts b/src/utils/sanitiseColumn.ts
index a16fac8..85838d5 100644
--- a/src/utils/sanitiseColumn.ts
+++ b/src/utils/sanitiseColumn.ts
@@ -55,5 +55,5 @@ export function sanitise(input: string): string {
         sanitized += '_';
     }
 
-    return sanitized.toLowerCase();
+    return sanitized;
 }
\ No newline at end of file