diff --git a/app/src/main/java/com/example/citrusclient/rest/FavoritesRest.java b/app/src/main/java/com/example/citrusclient/rest/FavoritesRest.java
index 4848018..cffd5df 100644
--- a/app/src/main/java/com/example/citrusclient/rest/FavoritesRest.java
+++ b/app/src/main/java/com/example/citrusclient/rest/FavoritesRest.java
@@ -1,5 +1,7 @@
 package com.example.citrusclient.rest;
 
+import com.example.citrusclient.models.Book;
+
 import java.util.HashMap;
 import java.util.HashSet;
 
@@ -14,9 +16,9 @@
 
 public interface FavoritesRest {
     //主{account_id}がいいねした本の一覧
-    @FormUrlEncoded
+
     @GET("accounts/{account_id}/favorites")
-    Call<HashMap<String, HashSet<Integer>>> getFavoritesBooks(
+    Call<HashMap<String, HashMap<Integer, Book>>> getFavoritesBooks(
             @Path("account_id") String accountId,
             @Query("token") String token
     );