diff --git a/packages/shared/src/index.ts b/packages/shared/src/index.ts
index 63aa9a37..f3fee4c4 100644
--- a/packages/shared/src/index.ts
+++ b/packages/shared/src/index.ts
@@ -52,7 +52,7 @@ export const isMap = (val: unknown): val is Map<any, any> =>
 export const isSet = (val: unknown): val is Set<any> =>
   toTypeString(val) === '[object Set]'
 
-export const isDate = (val: unknown): val is Date => val instanceof Date
+export const isDate = (val: unknown): val is Date => toTypeString(val) === '[object Date]'
 export const isFunction = (val: unknown): val is Function =>
   typeof val === 'function'
 export const isString = (val: unknown): val is string => typeof val === 'string'