diff --git a/src/main/java/org/ntlab/citrusserver/resources/FavoritesRest.java b/src/main/java/org/ntlab/citrusserver/resources/FavoritesRest.java
index 5dd76fc..c90074a 100644
--- a/src/main/java/org/ntlab/citrusserver/resources/FavoritesRest.java
+++ b/src/main/java/org/ntlab/citrusserver/resources/FavoritesRest.java
@@ -30,7 +30,7 @@
     @GET
     @Produces(MediaType.APPLICATION_JSON)
     public HashMap<String, HashSet<Integer>> getFavoritesBooks(@PathParam("account_id") String  accountId, @QueryParam("token") String token){
-        if(FavoriteManager.getFavoritesBooks(accountId) == null){
+        if(favoriteManager.getFavorites(accountId) == null){
             var response = Response.status(Response.Status.NOT_FOUND).entity("アカウントが見つかりません");
             throw new WebApplicationException(response.build());
         }
@@ -40,7 +40,7 @@
                 throw new WebApplicationException(response.build());
             }
             else{
-                return FavoriteManager.getFavoritesBooks(accountId);
+                return favoriteManager.getFavorites(accountId);
             }
         }
     }
@@ -49,7 +49,7 @@
     @GET
     @Produces(MediaType.APPLICATION_JSON)
     public HashSet<Integer> getFavoritesBooksById(@PathParam("account_id") String  accountId, @PathParam("other_account_id") String  otherAccountId,  @QueryParam("token") String token){
-        if(FavoriteManager.getFavoritesBooksById(accountId) == null){
+        if(favoriteManager.getFavoritesByID(accountId, otherAccountId) == null){
             var response = Response.status(Response.Status.NOT_FOUND).entity("アカウントが見つかりません");
             throw new WebApplicationException(response.build());
         }
@@ -59,7 +59,7 @@
                 throw new WebApplicationException(response.build());
             }
             else{
-                return FavoriteManager.getFavoritesBooks(accountId);
+                return favoriteManager.getFavoritesByID(accountId, otherAccountId);
             }
         }
     }