diff --git a/src/Model.php b/src/Model.php
index 950d9433..45ec53eb 100644
--- a/src/Model.php
+++ b/src/Model.php
@@ -347,7 +347,7 @@ public function setSuffix(string $suffix)
      * @param string|bool $key 缓存标识
      * @return $this
      */
-    public function setCacheKey(string | bool $key)
+    public function setCacheKey($key)
     {
         $this->cacheKey = $key;
         return $this;