diff --git a/src/services/ExpireCacheService.php b/src/services/ExpireCacheService.php
index 451771cf..3b6a4d01 100755
--- a/src/services/ExpireCacheService.php
+++ b/src/services/ExpireCacheService.php
@@ -57,7 +57,7 @@ public function getExpiredCacheIds(): array
     /**
      * Returns an expired cache ID with the provided site URI.
      */
-    public function getExpiredCacheId(SiteUriModel $siteUri): int|false
+    public function getExpiredCacheId(SiteUriModel $siteUri): int|false|null
     {
         return CacheRecord::find()
             ->select('id')
diff --git a/src/services/RefreshCacheService.php b/src/services/RefreshCacheService.php
index 7b1ff501..6811c680 100755
--- a/src/services/RefreshCacheService.php
+++ b/src/services/RefreshCacheService.php
@@ -468,7 +468,7 @@ public function refreshExpiredSiteUri(SiteUriModel $siteUri): void
     {
         $cacheId = Blitz::$plugin->expireCache->getExpiredCacheId($siteUri);
 
-        if ($cacheId === false) {
+        if (empty($cacheId)) {
             return;
         }