diff --git a/src/config-provider/useConfig.ts b/src/config-provider/useConfig.ts
index ad76f697f..f682eb717 100644
--- a/src/config-provider/useConfig.ts
+++ b/src/config-provider/useConfig.ts
@@ -69,7 +69,7 @@ export function useConfig<T extends keyof GlobalConfigProvider>(
  */
 export const provideConfig = (props: ConfigProviderProps) => {
   const defaultData = cloneDeep(defaultGlobalConfig);
-  const mergedGlobalConfig = computed(() => mergeWith(defaultData, props.globalConfig));
+  const mergedGlobalConfig = computed(() => ({ ...mergeWith(defaultData, props.globalConfig) }));
 
   provide(configProviderInjectKey, mergedGlobalConfig);