diff --git a/mastodon/build.gradle b/mastodon/build.gradle
index aa509585..43a5dc00 100644
--- a/mastodon/build.gradle
+++ b/mastodon/build.gradle
@@ -10,7 +10,7 @@ android {
 		applicationId "org.joinmastodon.android"
 		minSdk 23
 		targetSdk 31
-		versionCode 23
+		versionCode 24
 		versionName "0.1"
 	}
 
diff --git a/mastodon/proguard-rules.pro b/mastodon/proguard-rules.pro
index d076fa64..469f1788 100644
--- a/mastodon/proguard-rules.pro
+++ b/mastodon/proguard-rules.pro
@@ -44,4 +44,6 @@
 	*;
 }
 
--keep class org.joinmastodon.android.AppCenterWrapper { *; }
\ No newline at end of file
+-keep class org.joinmastodon.android.AppCenterWrapper { *; }
+
+-keepattributes LineNumberTable
\ No newline at end of file
diff --git a/mastodon/src/main/java/org/joinmastodon/android/fragments/HomeTimelineFragment.java b/mastodon/src/main/java/org/joinmastodon/android/fragments/HomeTimelineFragment.java
index 976221e1..ddc8a85f 100644
--- a/mastodon/src/main/java/org/joinmastodon/android/fragments/HomeTimelineFragment.java
+++ b/mastodon/src/main/java/org/joinmastodon/android/fragments/HomeTimelineFragment.java
@@ -48,6 +48,8 @@ public class HomeTimelineFragment extends StatusListFragment{
 				.getHomeTimeline(offset>0 ? getMaxID() : null, count, refreshing, new SimpleCallback<>(this){
 					@Override
 					public void onSuccess(List<Status> result){
+						if(getActivity()==null)
+							return;
 						onDataLoaded(result, !result.isEmpty());
 					}
 				});
diff --git a/mastodon/src/main/java/org/joinmastodon/android/fragments/NotificationsListFragment.java b/mastodon/src/main/java/org/joinmastodon/android/fragments/NotificationsListFragment.java
index 8894d768..e141c348 100644
--- a/mastodon/src/main/java/org/joinmastodon/android/fragments/NotificationsListFragment.java
+++ b/mastodon/src/main/java/org/joinmastodon/android/fragments/NotificationsListFragment.java
@@ -103,6 +103,8 @@ public class NotificationsListFragment extends BaseStatusListFragment<Notificati
 				.getNotifications(offset>0 ? getMaxID() : null, count, onlyMentions, refreshing, new SimpleCallback<>(this){
 					@Override
 					public void onSuccess(List<Notification> result){
+						if(getActivity()==null)
+							return;
 						if(refreshing)
 							relationships.clear();
 						onDataLoaded(result.stream().filter(n->n.type!=null).collect(Collectors.toList()), !result.isEmpty());
diff --git a/mastodon/src/main/java/org/joinmastodon/android/fragments/discover/DiscoverAccountsFragment.java b/mastodon/src/main/java/org/joinmastodon/android/fragments/discover/DiscoverAccountsFragment.java
index 9eff4f0a..7b77b518 100644
--- a/mastodon/src/main/java/org/joinmastodon/android/fragments/discover/DiscoverAccountsFragment.java
+++ b/mastodon/src/main/java/org/joinmastodon/android/fragments/discover/DiscoverAccountsFragment.java
@@ -121,6 +121,15 @@ public class DiscoverAccountsFragment extends BaseRecyclerFragment<DiscoverAccou
 		}).exec(accountID);
 	}
 
+	@Override
+	public void onDestroyView(){
+		super.onDestroyView();
+		if(relationshipsRequest!=null){
+			relationshipsRequest.cancel();
+			relationshipsRequest=null;
+		}
+	}
+
 	@Override
 	public void scrollToTop(){
 		smoothScrollRecyclerViewToTop(list);