diff --git a/app/src/main/java/com/example/tampopo_client/viewmodels/ActivityViewModel.java b/app/src/main/java/com/example/tampopo_client/viewmodels/ActivityViewModel.java
index 3d15caf..455723a 100644
--- a/app/src/main/java/com/example/tampopo_client/viewmodels/ActivityViewModel.java
+++ b/app/src/main/java/com/example/tampopo_client/viewmodels/ActivityViewModel.java
@@ -47,6 +47,7 @@
 
     private final List<String> sortedFriendUserIds = new ArrayList<>();
 
+
     /**
      * ActivityのViewModelを作成する。
      *
@@ -150,7 +151,7 @@
         if (userActivities == null || userActivities.isEmpty()) {
             userActivitiesLiveData.postValue(List.of(latestActivity));
         } else {
-            if (userActivities.equals(List.of(latestActivity))) {
+            if (userActivities.get(0).getActivityId().equals(latestActivity.getActivityId())) {
                 return;
             }