diff --git a/Mastodon/Service/APIService/APIService+Block.swift b/Mastodon/Service/APIService/APIService+Block.swift
index 124b65155..c28db9da9 100644
--- a/Mastodon/Service/APIService/APIService+Block.swift
+++ b/Mastodon/Service/APIService/APIService+Block.swift
@@ -136,7 +136,8 @@ extension APIService {
     ) -> AnyPublisher<Mastodon.Response.Content<Mastodon.Entity.Relationship>, Error> {
         let domain = mastodonAuthenticationBox.domain
         let authorization = mastodonAuthenticationBox.userAuthorization
-        
+        let requestMastodonUserID = mastodonAuthenticationBox.userID
+
         return Mastodon.API.Account.block(
             session: session,
             domain: domain,
@@ -144,11 +145,39 @@ extension APIService {
             blockQueryType: blockQueryType,
             authorization: authorization
         )
+        .flatMap { response -> AnyPublisher<Mastodon.Response.Content<Mastodon.Entity.Relationship>, Error> in
+            let managedObjectContext = self.backgroundManagedObjectContext
+            return managedObjectContext.performChanges {
+                let requestMastodonUserRequest = MastodonUser.sortedFetchRequest
+                requestMastodonUserRequest.predicate = MastodonUser.predicate(domain: domain, id: requestMastodonUserID)
+                requestMastodonUserRequest.fetchLimit = 1
+                guard let requestMastodonUser = managedObjectContext.safeFetch(requestMastodonUserRequest).first else { return }
+
+                let lookUpMastodonUserRequest = MastodonUser.sortedFetchRequest
+                lookUpMastodonUserRequest.predicate = MastodonUser.predicate(domain: domain, id: mastodonUserID)
+                lookUpMastodonUserRequest.fetchLimit = 1
+                let lookUpMastodonUser = managedObjectContext.safeFetch(lookUpMastodonUserRequest).first
+
+                if let lookUpMastodonUser = lookUpMastodonUser {
+                    let entity = response.value
+                    APIService.CoreData.update(user: lookUpMastodonUser, entity: entity, requestMastodonUser: requestMastodonUser, domain: domain, networkDate: response.networkDate)
+                }
+            }
+            .tryMap { result -> Mastodon.Response.Content<Mastodon.Entity.Relationship> in
+                switch result {
+                case .success:
+                    return response
+                case .failure(let error):
+                    throw error
+                }
+            }
+            .eraseToAnyPublisher()
+        }
         .handleEvents(receiveCompletion: { [weak self] completion in
             guard let _ = self else { return }
             switch completion {
             case .failure(let error):
-                // TODO: handle error
+                // TODO: handle error in banner
                 os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s: [Relationship] block update fail: %s", ((#file as NSString).lastPathComponent), #line, #function, error.localizedDescription)
 
             case .finished:
diff --git a/Mastodon/Service/APIService/APIService+Follow.swift b/Mastodon/Service/APIService/APIService+Follow.swift
index 53634ab4b..f527878f4 100644
--- a/Mastodon/Service/APIService/APIService+Follow.swift
+++ b/Mastodon/Service/APIService/APIService+Follow.swift
@@ -196,11 +196,11 @@ extension APIService {
                 let lookUpMastodonUserRequest = MastodonUser.sortedFetchRequest
                 lookUpMastodonUserRequest.predicate = MastodonUser.predicate(domain: domain, id: mastodonUserID)
                 lookUpMastodonUserRequest.fetchLimit = 1
-                let lookUpMastodonuser = managedObjectContext.safeFetch(lookUpMastodonUserRequest).first
+                let lookUpMastodonUser = managedObjectContext.safeFetch(lookUpMastodonUserRequest).first
                 
-                if let lookUpMastodonuser = lookUpMastodonuser {
+                if let lookUpMastodonUser = lookUpMastodonUser {
                     let entity = response.value
-                    APIService.CoreData.update(user: lookUpMastodonuser, entity: entity, requestMastodonUser: requestMastodonUser, domain: domain, networkDate: response.networkDate)
+                    APIService.CoreData.update(user: lookUpMastodonUser, entity: entity, requestMastodonUser: requestMastodonUser, domain: domain, networkDate: response.networkDate)
                 }
             }
             .tryMap { result -> Mastodon.Response.Content<Mastodon.Entity.Relationship> in