diff --git a/Habitica/src/main/java/com/habitrpg/android/habitica/data/implementation/ChallengeRepositoryImpl.java b/Habitica/src/main/java/com/habitrpg/android/habitica/data/implementation/ChallengeRepositoryImpl.java
index 238f0c8e1..adeb788da 100644
--- a/Habitica/src/main/java/com/habitrpg/android/habitica/data/implementation/ChallengeRepositoryImpl.java
+++ b/Habitica/src/main/java/com/habitrpg/android/habitica/data/implementation/ChallengeRepositoryImpl.java
@@ -120,7 +120,7 @@ public class ChallengeRepositoryImpl extends BaseRepositoryImpl<ChallengeLocalRe
     @Override
     public Observable<List<Challenge>> retrieveChallenges(User user) {
         return apiClient.getUserChallenges()
-                .doOnNext(localRepository::save);
+                .doOnNext(localRepository::saveChallenges);
     }
 
     @Override
diff --git a/Habitica/src/main/java/com/habitrpg/android/habitica/data/local/ChallengeLocalRepository.java b/Habitica/src/main/java/com/habitrpg/android/habitica/data/local/ChallengeLocalRepository.java
index cb2a85752..31a9c00ae 100644
--- a/Habitica/src/main/java/com/habitrpg/android/habitica/data/local/ChallengeLocalRepository.java
+++ b/Habitica/src/main/java/com/habitrpg/android/habitica/data/local/ChallengeLocalRepository.java
@@ -20,4 +20,6 @@ public interface ChallengeLocalRepository extends BaseLocalRepository {
     Observable<RealmResults<Challenge>> getUserChallenges(String userId);
 
     void setParticipating(Challenge challenge, boolean isParticipating);
+
+    void saveChallenges(List<Challenge> challenges);
 }
diff --git a/Habitica/src/main/java/com/habitrpg/android/habitica/data/local/implementation/RealmChallengeLocalRepository.java b/Habitica/src/main/java/com/habitrpg/android/habitica/data/local/implementation/RealmChallengeLocalRepository.java
index 2aa11dcf1..6a77660e7 100644
--- a/Habitica/src/main/java/com/habitrpg/android/habitica/data/local/implementation/RealmChallengeLocalRepository.java
+++ b/Habitica/src/main/java/com/habitrpg/android/habitica/data/local/implementation/RealmChallengeLocalRepository.java
@@ -2,12 +2,12 @@ package com.habitrpg.android.habitica.data.local.implementation;
 
 import com.habitrpg.android.habitica.data.local.ChallengeLocalRepository;
 import com.habitrpg.android.habitica.models.social.Challenge;
-import com.habitrpg.android.habitica.models.social.Group;
 import com.habitrpg.android.habitica.models.tasks.Task;
-import com.habitrpg.android.habitica.models.user.User;
 
+import java.util.ArrayList;
 import java.util.List;
 
+import io.realm.OrderedRealmCollectionSnapshot;
 import io.realm.Realm;
 import io.realm.RealmResults;
 import io.realm.Sort;
@@ -57,4 +57,21 @@ public class RealmChallengeLocalRepository extends RealmBaseLocalRepository impl
     public void setParticipating(Challenge challenge, boolean isParticipating) {
         realm.executeTransaction(realm1 -> challenge.isParticipating = isParticipating);
     }
+
+    @Override
+    public void saveChallenges(List<Challenge> onlineChallenges) {
+        OrderedRealmCollectionSnapshot<Challenge> localChallenges = realm.where(Challenge.class).findAll().createSnapshot();
+        List<Challenge> challengesToDelete = new ArrayList<>();
+        for (Challenge localTask : localChallenges) {
+            if (!onlineChallenges.contains(localTask)) {
+                challengesToDelete.add(localTask);
+            }
+        }
+        realm.executeTransaction(realm1 -> {
+            for (Challenge localTask : challengesToDelete) {
+                localTask.deleteFromRealm();
+            }
+        });
+        realm.executeTransaction(realm1 -> realm1.insertOrUpdate(onlineChallenges));
+    }
 }