diff --git a/src/function/sync/apply-actions/dispatch-app-logic-action/updateinstalledapps.ts b/src/function/sync/apply-actions/dispatch-app-logic-action/updateinstalledapps.ts
index 27085b4..fec4492 100644
--- a/src/function/sync/apply-actions/dispatch-app-logic-action/updateinstalledapps.ts
+++ b/src/function/sync/apply-actions/dispatch-app-logic-action/updateinstalledapps.ts
@@ -25,24 +25,58 @@ export async function dispatchUpdateInstalledApps ({ deviceId, action, cache }:
   action: UpdateInstalledAppsAction
   cache: Cache
 }) {
+  async function upsert({ type, data }: { type: number, data: Buffer }) {
+    const dialect = cache.database.dialect
+    const isMysql = dialect === 'mysql' || dialect === 'mariadb'
+
+    if (isMysql) {
+      const counter = await cache.database.encryptedAppList.count({
+        where: {
+          familyId: cache.familyId,
+          deviceId,
+          type
+        },
+        transaction: cache.transaction
+      })
+
+      if (counter === 0) {
+        await cache.database.encryptedAppList.create({
+          familyId: cache.familyId,
+          deviceId,
+          type,
+          version: generateVersionId(),
+          data
+        }, { transaction: cache.transaction })
+      } else {
+        await cache.database.encryptedAppList.update({
+          data,
+          version: generateVersionId()
+        }, {
+          where: {
+            familyId: cache.familyId,
+            deviceId,
+            type
+          },
+          transaction: cache.transaction
+        })
+      }
+    } else {
+      await cache.database.encryptedAppList.upsert({
+        familyId: cache.familyId,
+        deviceId,
+        type,
+        version: generateVersionId(),
+        data
+      }, { transaction: cache.transaction })
+    }
+  }
+
   if (action.base) {
-    await cache.database.encryptedAppList.upsert({
-      familyId: cache.familyId,
-      deviceId,
-      type: types.base,
-      version: generateVersionId(),
-      data: action.base
-    }, { transaction: cache.transaction })
+    await upsert({ type: types.base, data: action.base })
   }
 
   if (action.diff) {
-    await cache.database.encryptedAppList.upsert({
-      familyId: cache.familyId,
-      deviceId,
-      type: types.diff,
-      version: generateVersionId(),
-      data: action.diff
-    }, { transaction: cache.transaction })
+    await upsert({ type: types.diff, data: action.diff })
   }
 
   if (action.wipe) {