diff --git a/src/main/java/me/zhyd/oauth/utils/UrlBuilder.java b/src/main/java/me/zhyd/oauth/utils/UrlBuilder.java
index 11fb1c41b64ef29e5df57ff98b4a9799739e863d..de27091a13870706cfff479b9a2dd16f1183cb37 100644
--- a/src/main/java/me/zhyd/oauth/utils/UrlBuilder.java
+++ b/src/main/java/me/zhyd/oauth/utils/UrlBuilder.java
@@ -19,7 +19,7 @@ import java.util.Map;
 @Setter
 public class UrlBuilder {
 
-    private final Map<String, Object> params = new LinkedHashMap<>(4);
+    private final Map<String, Object> params = new LinkedHashMap<>(7);
     private String baseUrl;
 
     private UrlBuilder() {