diff --git a/src/main/java/ru/ulstu/configuration/ApplicationProperties.java b/src/main/java/ru/ulstu/configuration/ApplicationProperties.java
index 8615cb2..339bcb7 100644
--- a/src/main/java/ru/ulstu/configuration/ApplicationProperties.java
+++ b/src/main/java/ru/ulstu/configuration/ApplicationProperties.java
@@ -1,10 +1,11 @@
 package ru.ulstu.configuration;
 
-import org.hibernate.validator.constraints.NotBlank;
 import org.springframework.boot.context.properties.ConfigurationProperties;
 import org.springframework.stereotype.Component;
 import org.springframework.validation.annotation.Validated;
 
+import javax.validation.constraints.NotBlank;
+
 @Component
 @ConfigurationProperties(prefix = "ng-tracker")
 @Validated
diff --git a/src/main/java/ru/ulstu/configuration/MvcConfiguration.java b/src/main/java/ru/ulstu/configuration/MvcConfiguration.java
index 3e8d66f..f9e887f 100644
--- a/src/main/java/ru/ulstu/configuration/MvcConfiguration.java
+++ b/src/main/java/ru/ulstu/configuration/MvcConfiguration.java
@@ -3,10 +3,10 @@ package ru.ulstu.configuration;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
 import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
-import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
 
 @Configuration
-public class MvcConfiguration extends WebMvcConfigurerAdapter {
+public class MvcConfiguration implements WebMvcConfigurer {
     @Override
     public void addViewControllers(ViewControllerRegistry registry) {
         registry.addViewController("/{articlename:\\w+}");
diff --git a/src/main/java/ru/ulstu/grant/model/Grant.java b/src/main/java/ru/ulstu/grant/model/Grant.java
index 685a1d5..09c2cdf 100644
--- a/src/main/java/ru/ulstu/grant/model/Grant.java
+++ b/src/main/java/ru/ulstu/grant/model/Grant.java
@@ -1,6 +1,5 @@
 package ru.ulstu.grant.model;
 
-import org.hibernate.validator.constraints.NotBlank;
 import ru.ulstu.core.model.BaseEntity;
 import ru.ulstu.deadline.model.Deadline;
 import ru.ulstu.file.model.FileData;
@@ -14,6 +13,7 @@ import javax.persistence.JoinColumn;
 import javax.persistence.ManyToOne;
 import javax.persistence.OneToMany;
 import javax.persistence.Table;
+import javax.validation.constraints.NotBlank;
 import javax.validation.constraints.NotNull;
 import java.util.ArrayList;
 import java.util.Comparator;
diff --git a/src/main/java/ru/ulstu/grant/model/GrantDto.java b/src/main/java/ru/ulstu/grant/model/GrantDto.java
index fb29164..1d0a43c 100644
--- a/src/main/java/ru/ulstu/grant/model/GrantDto.java
+++ b/src/main/java/ru/ulstu/grant/model/GrantDto.java
@@ -2,10 +2,10 @@ package ru.ulstu.grant.model;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonProperty;
-import org.hibernate.validator.constraints.NotEmpty;
 import ru.ulstu.deadline.model.Deadline;
 import ru.ulstu.project.model.ProjectDto;
 
+import javax.validation.constraints.NotEmpty;
 import java.util.ArrayList;
 import java.util.List;
 
diff --git a/src/main/java/ru/ulstu/odin/model/OdinStringField.java b/src/main/java/ru/ulstu/odin/model/OdinStringField.java
index 5157d7e..498b375 100644
--- a/src/main/java/ru/ulstu/odin/model/OdinStringField.java
+++ b/src/main/java/ru/ulstu/odin/model/OdinStringField.java
@@ -1,9 +1,9 @@
 package ru.ulstu.odin.model;
 
-import org.hibernate.validator.constraints.Email;
 import ru.ulstu.odin.model.annotation.OdinString;
 import ru.ulstu.odin.model.annotation.OdinString.OdinStringType;
 
+import javax.validation.constraints.Email;
 import javax.validation.constraints.Size;
 import java.lang.reflect.Field;
 
diff --git a/src/main/java/ru/ulstu/paper/model/Paper.java b/src/main/java/ru/ulstu/paper/model/Paper.java
index c09fd28..685a901 100644
--- a/src/main/java/ru/ulstu/paper/model/Paper.java
+++ b/src/main/java/ru/ulstu/paper/model/Paper.java
@@ -2,7 +2,6 @@ package ru.ulstu.paper.model;
 
 import org.hibernate.annotations.Fetch;
 import org.hibernate.annotations.FetchMode;
-import org.hibernate.validator.constraints.NotBlank;
 import ru.ulstu.core.model.BaseEntity;
 import ru.ulstu.core.model.UserContainer;
 import ru.ulstu.deadline.model.Deadline;
@@ -22,6 +21,7 @@ import javax.persistence.OneToMany;
 import javax.persistence.OrderBy;
 import javax.persistence.Temporal;
 import javax.persistence.TemporalType;
+import javax.validation.constraints.NotBlank;
 import java.util.ArrayList;
 import java.util.Comparator;
 import java.util.Date;
diff --git a/src/main/java/ru/ulstu/paper/model/PaperDto.java b/src/main/java/ru/ulstu/paper/model/PaperDto.java
index 3405768..c828381 100644
--- a/src/main/java/ru/ulstu/paper/model/PaperDto.java
+++ b/src/main/java/ru/ulstu/paper/model/PaperDto.java
@@ -3,10 +3,10 @@ package ru.ulstu.paper.model;
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import org.apache.commons.lang3.StringUtils;
-import org.hibernate.validator.constraints.NotEmpty;
 import ru.ulstu.deadline.model.Deadline;
 import ru.ulstu.user.model.UserDto;
 
+import javax.validation.constraints.NotEmpty;
 import javax.validation.constraints.Size;
 import java.util.ArrayList;
 import java.util.Date;
diff --git a/src/main/java/ru/ulstu/project/model/Project.java b/src/main/java/ru/ulstu/project/model/Project.java
index 06722a1..896c53d 100644
--- a/src/main/java/ru/ulstu/project/model/Project.java
+++ b/src/main/java/ru/ulstu/project/model/Project.java
@@ -1,6 +1,5 @@
 package ru.ulstu.project.model;
 
-import org.hibernate.validator.constraints.NotBlank;
 import ru.ulstu.core.model.BaseEntity;
 import ru.ulstu.deadline.model.Deadline;
 
@@ -8,6 +7,7 @@ import javax.persistence.CascadeType;
 import javax.persistence.Entity;
 import javax.persistence.JoinColumn;
 import javax.persistence.OneToMany;
+import javax.validation.constraints.NotBlank;
 import java.util.ArrayList;
 import java.util.List;
 
diff --git a/src/main/java/ru/ulstu/project/model/ProjectDto.java b/src/main/java/ru/ulstu/project/model/ProjectDto.java
index db7fc75..65f4365 100644
--- a/src/main/java/ru/ulstu/project/model/ProjectDto.java
+++ b/src/main/java/ru/ulstu/project/model/ProjectDto.java
@@ -2,9 +2,9 @@ package ru.ulstu.project.model;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonProperty;
-import org.hibernate.validator.constraints.NotEmpty;
 import ru.ulstu.deadline.model.Deadline;
 
+import javax.validation.constraints.NotEmpty;
 import java.util.ArrayList;
 import java.util.List;
 
diff --git a/src/main/java/ru/ulstu/timeline/model/Event.java b/src/main/java/ru/ulstu/timeline/model/Event.java
index 290f136..f64963d 100644
--- a/src/main/java/ru/ulstu/timeline/model/Event.java
+++ b/src/main/java/ru/ulstu/timeline/model/Event.java
@@ -1,6 +1,5 @@
 package ru.ulstu.timeline.model;
 
-import org.hibernate.validator.constraints.NotBlank;
 import ru.ulstu.core.model.BaseEntity;
 import ru.ulstu.user.model.User;
 
@@ -16,6 +15,7 @@ import javax.persistence.ManyToOne;
 import javax.persistence.OneToMany;
 import javax.persistence.Temporal;
 import javax.persistence.TemporalType;
+import javax.validation.constraints.NotBlank;
 import javax.validation.constraints.NotNull;
 import java.util.Date;
 import java.util.List;
diff --git a/src/main/java/ru/ulstu/timeline/model/EventDto.java b/src/main/java/ru/ulstu/timeline/model/EventDto.java
index 9e70a9d..b053d36 100644
--- a/src/main/java/ru/ulstu/timeline/model/EventDto.java
+++ b/src/main/java/ru/ulstu/timeline/model/EventDto.java
@@ -2,9 +2,9 @@ package ru.ulstu.timeline.model;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonProperty;
-import org.hibernate.validator.constraints.NotBlank;
 import ru.ulstu.user.model.UserDto;
 
+import javax.validation.constraints.NotBlank;
 import javax.validation.constraints.NotNull;
 import java.util.Date;
 import java.util.List;
diff --git a/src/main/java/ru/ulstu/user/model/UserResetPasswordDto.java b/src/main/java/ru/ulstu/user/model/UserResetPasswordDto.java
index 33d84bc..6da2813 100644
--- a/src/main/java/ru/ulstu/user/model/UserResetPasswordDto.java
+++ b/src/main/java/ru/ulstu/user/model/UserResetPasswordDto.java
@@ -1,8 +1,8 @@
 package ru.ulstu.user.model;
 
-import org.hibernate.validator.constraints.NotEmpty;
 import ru.ulstu.configuration.Constants;
 
+import javax.validation.constraints.NotEmpty;
 import javax.validation.constraints.Size;
 import java.util.Objects;
 
diff --git a/src/main/java/ru/ulstu/user/service/UserService.java b/src/main/java/ru/ulstu/user/service/UserService.java
index e318401..198ffcd 100644
--- a/src/main/java/ru/ulstu/user/service/UserService.java
+++ b/src/main/java/ru/ulstu/user/service/UserService.java
@@ -94,7 +94,7 @@ public class UserService implements UserDetailsService {
 
     @Transactional(readOnly = true)
     public PageableItems<UserListDto> getAllUsers(int offset, int count) {
-        final Page<User> page = userRepository.findAll(new OffsetablePageRequest(offset, count, new Sort("id")));
+        final Page<User> page = userRepository.findAll(new OffsetablePageRequest(offset, count, Sort.by("id")));
         return new PageableItems<>(page.getTotalElements(), userMapper.userEntitiesToUserListDtos(page.getContent()));
     }