diff --git a/.changes/nextrelease/php-8-patch.json b/.changes/nextrelease/php-8-patch.json
new file mode 100644
index 0000000000..d8e0c50853
--- /dev/null
+++ b/.changes/nextrelease/php-8-patch.json
@@ -0,0 +1,7 @@
+[
+    {
+        "type": "bugfix",
+        "category": "Credentials",
+        "description": "Fixes a crash in PHP 8.0 by calling array_values on the default chain array passed into self::chain"
+    }
+]
diff --git a/src/Credentials/CredentialProvider.php b/src/Credentials/CredentialProvider.php
index 252a739119..bda6712c2b 100644
--- a/src/Credentials/CredentialProvider.php
+++ b/src/Credentials/CredentialProvider.php
@@ -122,7 +122,7 @@ public static function defaultProvider(array $config = [])
         return self::memoize(
             call_user_func_array(
                 'self::chain',
-                $defaultChain
+                array_values($defaultChain)
             )
         );
     }