diff --git a/src/test/java/io/hexlet/blog/controller/api/PostsCommentsControllerTest.java b/src/test/java/io/hexlet/blog/controller/api/PostsCommentsControllerTest.java
index 8778a71..03a73c2 100644
--- a/src/test/java/io/hexlet/blog/controller/api/PostsCommentsControllerTest.java
+++ b/src/test/java/io/hexlet/blog/controller/api/PostsCommentsControllerTest.java
@@ -2,6 +2,7 @@
 
 import static net.javacrumbs.jsonunit.assertj.JsonAssertions.assertThatJson;
 import static org.springframework.security.test.web.servlet.request.SecurityMockMvcRequestPostProcessors.jwt;
+import static org.springframework.security.test.web.servlet.setup.SecurityMockMvcConfigurers.springSecurity;
 import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
 
@@ -20,12 +21,19 @@
 import io.hexlet.blog.util.ModelGenerator;
 import io.hexlet.blog.util.UserUtils;
 import jakarta.transaction.Transactional;
+import org.springframework.test.web.servlet.setup.MockMvcBuilders;
+import org.springframework.web.context.WebApplicationContext;
+
+import java.nio.charset.StandardCharsets;
 
 @SpringBootTest
 @Transactional
 @AutoConfigureMockMvc
 public class PostsCommentsControllerTest {
 
+    @Autowired
+    private WebApplicationContext wac;
+
     @Autowired
     private MockMvc mockMvc;
 
@@ -47,7 +55,13 @@ public class PostsCommentsControllerTest {
 
     @BeforeEach
     public void setUp() {
+        mockMvc = MockMvcBuilders.webAppContextSetup(wac)
+                .defaultResponseCharacterEncoding(StandardCharsets.UTF_8)
+                .apply(springSecurity())
+                .build();
+
         token = jwt().jwt(builder -> builder.subject("hexlet@example.com"));
+
         testPost = Instancio.of(modelGenerator.getPostModel())
                 .create();
         testPost.setAuthor(userUtils.getTestUser());
diff --git a/src/test/java/io/hexlet/blog/controller/api/PostsControllerTest.java b/src/test/java/io/hexlet/blog/controller/api/PostsControllerTest.java
index 67154e5..f283b21 100644
--- a/src/test/java/io/hexlet/blog/controller/api/PostsControllerTest.java
+++ b/src/test/java/io/hexlet/blog/controller/api/PostsControllerTest.java
@@ -4,6 +4,7 @@
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.junit.jupiter.api.Assertions.assertNotNull;
 import static org.springframework.security.test.web.servlet.request.SecurityMockMvcRequestPostProcessors.jwt;
+import static org.springframework.security.test.web.servlet.setup.SecurityMockMvcConfigurers.springSecurity;
 import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.delete;
 import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
 import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
@@ -29,11 +30,18 @@
 import io.hexlet.blog.repository.PostRepository;
 import io.hexlet.blog.util.ModelGenerator;
 import io.hexlet.blog.util.UserUtils;
+import org.springframework.test.web.servlet.setup.MockMvcBuilders;
+import org.springframework.web.context.WebApplicationContext;
+
+import java.nio.charset.StandardCharsets;
 
 @SpringBootTest
 @AutoConfigureMockMvc
 public class PostsControllerTest {
 
+    @Autowired
+    private WebApplicationContext wac;
+
     @Autowired
     private MockMvc mockMvc;
 
@@ -58,7 +66,13 @@ public class PostsControllerTest {
 
     @BeforeEach
     public void setUp() {
+        mockMvc = MockMvcBuilders.webAppContextSetup(wac)
+                .defaultResponseCharacterEncoding(StandardCharsets.UTF_8)
+                .apply(springSecurity())
+                .build();
+
         token = jwt().jwt(builder -> builder.subject("hexlet@example.com"));
+
         testPost = Instancio.of(modelGenerator.getPostModel())
                 .create();
         testPost.setAuthor(userUtils.getTestUser());
diff --git a/src/test/java/io/hexlet/blog/controller/api/UsersControllerTest.java b/src/test/java/io/hexlet/blog/controller/api/UsersControllerTest.java
index 9b1a623..62c4940 100644
--- a/src/test/java/io/hexlet/blog/controller/api/UsersControllerTest.java
+++ b/src/test/java/io/hexlet/blog/controller/api/UsersControllerTest.java
@@ -3,11 +3,13 @@
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.junit.jupiter.api.Assertions.assertNotNull;
 import static org.springframework.security.test.web.servlet.request.SecurityMockMvcRequestPostProcessors.jwt;
+import static org.springframework.security.test.web.servlet.setup.SecurityMockMvcConfigurers.springSecurity;
 import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
 import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.put;
 import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
 
+import java.nio.charset.StandardCharsets;
 import java.util.HashMap;
 
 import org.instancio.Instancio;
@@ -26,11 +28,16 @@
 import io.hexlet.blog.repository.UserRepository;
 import io.hexlet.blog.util.ModelGenerator;
 import net.datafaker.Faker;
+import org.springframework.test.web.servlet.setup.MockMvcBuilders;
+import org.springframework.web.context.WebApplicationContext;
 
 @SpringBootTest
 @AutoConfigureMockMvc
 public class UsersControllerTest {
 
+    @Autowired
+    private WebApplicationContext wac;
+
     @Autowired
     private MockMvc mockMvc;
 
@@ -52,7 +59,13 @@ public class UsersControllerTest {
 
     @BeforeEach
     public void setUp() {
+        mockMvc = MockMvcBuilders.webAppContextSetup(wac)
+                .defaultResponseCharacterEncoding(StandardCharsets.UTF_8)
+                .apply(springSecurity())
+                .build();
+
         token = jwt().jwt(builder -> builder.subject("hexlet@example.com"));
+
         testUser = Instancio.of(modelGenerator.getUserModel())
                 .create();
         userRepository.save(testUser);