diff --git a/src/Eloquent/Relations/Traits/RetrievesIntermediateTables.php b/src/Eloquent/Relations/Traits/RetrievesIntermediateTables.php
index 2898c37..e3d289b 100644
--- a/src/Eloquent/Relations/Traits/RetrievesIntermediateTables.php
+++ b/src/Eloquent/Relations/Traits/RetrievesIntermediateTables.php
@@ -100,7 +100,7 @@ protected function hydrateIntermediateRelations(array $models)
         foreach ($intermediateTables as $accessor => $intermediateTable) {
             $prefix = $this->prefix($accessor);
 
-            if (Str::contains($accessor, '.')) {
+            if (str_contains($accessor, '.')) {
                 [$path, $key] = preg_split('/\.(?=[^.]*$)/', $accessor);
             } else {
                 [$path, $key] = [null, $accessor];