diff --git a/back/src/main/java/com/mang/example/security/app/user/controller/UserController.java b/back/src/main/java/com/mang/example/security/app/user/controller/UserController.java
index febfdb83..b3dfc16c 100644
--- a/back/src/main/java/com/mang/example/security/app/user/controller/UserController.java
+++ b/back/src/main/java/com/mang/example/security/app/user/controller/UserController.java
@@ -1,15 +1,12 @@
 package com.mang.example.security.app.user.controller;
 
-import com.mang.example.security.app.user.domain.User;
 import com.mang.example.security.app.user.dto.SignUpDTO;
 import com.mang.example.security.app.user.dto.UserListResponseDTO;
 import com.mang.example.security.app.user.service.UserService;
-import com.mang.example.security.enums.role.UserRole;
 import com.mang.example.security.utils.TokenUtils;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.log4j.Log4j2;
 import org.springframework.http.ResponseEntity;
-import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
 import org.springframework.web.bind.annotation.*;
 
 @RequiredArgsConstructor
@@ -18,25 +15,18 @@
 @Log4j2
 public class UserController {
 
-    private final BCryptPasswordEncoder passwordEncoder;
     private final UserService userService;
 
     @PostMapping(value = "/signUp")
-    public ResponseEntity<String> signUp(@RequestBody SignUpDTO signUpDTO) {
-        User user = User.builder()
-                .email(signUpDTO.getEmail())
-                .pw(passwordEncoder.encode(signUpDTO.getPw()))
-                .role(UserRole.ROLE_USER)
-                .build();
-
-        return userService.findByEmail(user.getEmail()).isPresent()
+    public ResponseEntity<String> signUp(@RequestBody final SignUpDTO signUpDTO) {
+        return userService.findByEmail(signUpDTO.getEmail()).isPresent()
                 ? ResponseEntity.badRequest().build()
-                : ResponseEntity.ok(TokenUtils.generateJwtToken(userService.signUp(user)));
+                : ResponseEntity.ok(TokenUtils.generateJwtToken(userService.signUp(signUpDTO)));
     }
 
     @GetMapping(value = "/list")
     public ResponseEntity<UserListResponseDTO> findAll() {
-        UserListResponseDTO userListResponseDTO = UserListResponseDTO.builder()
+        final UserListResponseDTO userListResponseDTO = UserListResponseDTO.builder()
                 .userList(userService.findAll()).build();
 
         return ResponseEntity.ok(userListResponseDTO);
diff --git a/back/src/main/java/com/mang/example/security/app/user/domain/MyUserDetails.java b/back/src/main/java/com/mang/example/security/app/user/domain/MyUserDetails.java
index e0374a76..1569b4b7 100644
--- a/back/src/main/java/com/mang/example/security/app/user/domain/MyUserDetails.java
+++ b/back/src/main/java/com/mang/example/security/app/user/domain/MyUserDetails.java
@@ -1,20 +1,20 @@
 package com.mang.example.security.app.user.domain;
 
-import lombok.AllArgsConstructor;
 import lombok.Getter;
+import lombok.RequiredArgsConstructor;
 import lombok.experimental.Delegate;
 import org.springframework.security.core.GrantedAuthority;
 import org.springframework.security.core.userdetails.UserDetails;
 
 import java.util.Collection;
 
-@AllArgsConstructor
+@RequiredArgsConstructor
 @Getter
 public class MyUserDetails implements UserDetails {
 
     @Delegate
-    private User user;
-    private Collection<? extends GrantedAuthority> authorities;
+    private final User user;
+    private final Collection<? extends GrantedAuthority> authorities;
 
     @Override
     public Collection<? extends GrantedAuthority> getAuthorities() {
diff --git a/back/src/main/java/com/mang/example/security/app/user/service/UserDetailsServiceImpl.java b/back/src/main/java/com/mang/example/security/app/user/service/UserDetailsServiceImpl.java
index dfb6661f..eb292687 100644
--- a/back/src/main/java/com/mang/example/security/app/user/service/UserDetailsServiceImpl.java
+++ b/back/src/main/java/com/mang/example/security/app/user/service/UserDetailsServiceImpl.java
@@ -3,21 +3,24 @@
 import com.mang.example.security.app.user.domain.MyUserDetails;
 import com.mang.example.security.app.user.repository.UserRepository;
 import com.mang.example.security.exception.UserNotFoundException;
-import lombok.AllArgsConstructor;
+import lombok.RequiredArgsConstructor;
 import org.springframework.security.core.authority.SimpleGrantedAuthority;
 import org.springframework.security.core.userdetails.UserDetailsService;
 import org.springframework.stereotype.Service;
 
 import java.util.Collections;
 
-@AllArgsConstructor
-@Service("userDetailsService")
+@RequiredArgsConstructor
+@Service
 public class UserDetailsServiceImpl implements UserDetailsService {
 
-    private UserRepository userRepository;
+    private final UserRepository userRepository;
 
     @Override
     public MyUserDetails loadUserByUsername(String email) {
-        return userRepository.findByEmail(email).map(u -> new MyUserDetails(u, Collections.singleton(new SimpleGrantedAuthority(u.getRole().getValue())))).orElseThrow(() -> new UserNotFoundException(email));
+        return userRepository.findByEmail(email)
+                .map(u -> new MyUserDetails(u, Collections.singleton(new SimpleGrantedAuthority(u.getRole().getValue()))))
+                .orElseThrow(() -> new UserNotFoundException(email));
     }
+
 }
diff --git a/back/src/main/java/com/mang/example/security/app/user/service/UserService.java b/back/src/main/java/com/mang/example/security/app/user/service/UserService.java
index a4846777..d0161e76 100644
--- a/back/src/main/java/com/mang/example/security/app/user/service/UserService.java
+++ b/back/src/main/java/com/mang/example/security/app/user/service/UserService.java
@@ -1,15 +1,16 @@
 package com.mang.example.security.app.user.service;
 
 import com.mang.example.security.app.user.domain.User;
+import com.mang.example.security.app.user.dto.SignUpDTO;
 
 import java.util.List;
 import java.util.Optional;
 
 public interface UserService {
 
-    User signUp(User user);
+    User signUp(final SignUpDTO signUpDTO);
 
-    Optional<User> findByEmail(String email);
+    Optional<User> findByEmail(final String email);
 
     List<User> findAll();
 
diff --git a/back/src/main/java/com/mang/example/security/app/user/service/UserServiceImpl.java b/back/src/main/java/com/mang/example/security/app/user/service/UserServiceImpl.java
index fd80d385..8fc243fa 100644
--- a/back/src/main/java/com/mang/example/security/app/user/service/UserServiceImpl.java
+++ b/back/src/main/java/com/mang/example/security/app/user/service/UserServiceImpl.java
@@ -1,28 +1,36 @@
 package com.mang.example.security.app.user.service;
 
 import com.mang.example.security.app.user.domain.User;
+import com.mang.example.security.app.user.dto.SignUpDTO;
 import com.mang.example.security.app.user.repository.UserRepository;
-import lombok.NonNull;
+import com.mang.example.security.enums.role.UserRole;
 import lombok.RequiredArgsConstructor;
+import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
 import org.springframework.stereotype.Service;
 
 import java.util.List;
 import java.util.Optional;
 
 @RequiredArgsConstructor
-@Service("userService")
+@Service
 public class UserServiceImpl implements UserService {
 
-    @NonNull
-    private UserRepository userRepository;
+    private final UserRepository userRepository;
+    private final BCryptPasswordEncoder passwordEncoder;
 
     @Override
-    public User signUp(User user) {
+    public User signUp(final SignUpDTO signUpDTO) {
+        final User user = User.builder()
+                .email(signUpDTO.getEmail())
+                .pw(passwordEncoder.encode(signUpDTO.getPw()))
+                .role(UserRole.ROLE_USER)
+                .build();
+
         return userRepository.save(user);
     }
 
     @Override
-    public Optional<User> findByEmail(String email) {
+    public Optional<User> findByEmail(final String email) {
         return userRepository.findByEmail(email);
     }
 
diff --git a/back/src/main/java/com/mang/example/security/config/filter/HeaderFilter.java b/back/src/main/java/com/mang/example/security/config/filter/HeaderFilter.java
index 0cf84123..9514ce98 100644
--- a/back/src/main/java/com/mang/example/security/config/filter/HeaderFilter.java
+++ b/back/src/main/java/com/mang/example/security/config/filter/HeaderFilter.java
@@ -10,8 +10,8 @@
 public class HeaderFilter implements Filter {
 
     @Override
-    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
-        HttpServletResponse res = (HttpServletResponse) response;
+    public void doFilter(final ServletRequest request, final ServletResponse response, final FilterChain chain) throws IOException, ServletException {
+        final HttpServletResponse res = (HttpServletResponse) response;
         res.setHeader("Access-Control-Allow-Origin", "*");
         res.setHeader("Access-Control-Allow-Methods", "GET, POST");
         res.setHeader("Access-Control-Max-Age", "3600");
diff --git a/back/src/main/java/com/mang/example/security/config/interceptor/JwtTokenInterceptor.java b/back/src/main/java/com/mang/example/security/config/interceptor/JwtTokenInterceptor.java
index c4edeed5..15bdeda9 100644
--- a/back/src/main/java/com/mang/example/security/config/interceptor/JwtTokenInterceptor.java
+++ b/back/src/main/java/com/mang/example/security/config/interceptor/JwtTokenInterceptor.java
@@ -13,11 +13,11 @@
 public class JwtTokenInterceptor implements HandlerInterceptor {
 
     @Override
-    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws IOException {
-        String header = request.getHeader(AuthConstants.AUTH_HEADER);
+    public boolean preHandle(final HttpServletRequest request, final HttpServletResponse response, final Object handler) throws IOException {
+        final String header = request.getHeader(AuthConstants.AUTH_HEADER);
 
         if (header != null) {
-            String token = TokenUtils.getTokenFromHeader(header);
+            final String token = TokenUtils.getTokenFromHeader(header);
             if (TokenUtils.isValidToken(token)) {
                 return true;
             }
diff --git a/back/src/main/java/com/mang/example/security/config/security/CustomAuthenticationFilter.java b/back/src/main/java/com/mang/example/security/config/security/CustomAuthenticationFilter.java
index cf5de9ee..8b7ee06c 100644
--- a/back/src/main/java/com/mang/example/security/config/security/CustomAuthenticationFilter.java
+++ b/back/src/main/java/com/mang/example/security/config/security/CustomAuthenticationFilter.java
@@ -17,15 +17,15 @@
 @Log4j2
 public class CustomAuthenticationFilter extends UsernamePasswordAuthenticationFilter {
 
-    public CustomAuthenticationFilter(AuthenticationManager authenticationManager) {
+    public CustomAuthenticationFilter(final AuthenticationManager authenticationManager) {
         super.setAuthenticationManager(authenticationManager);
     }
 
     @Override
-    public Authentication attemptAuthentication(HttpServletRequest request, HttpServletResponse response) throws AuthenticationException{
-        UsernamePasswordAuthenticationToken authRequest;
+    public Authentication attemptAuthentication(final HttpServletRequest request, final HttpServletResponse response) throws AuthenticationException{
+        final UsernamePasswordAuthenticationToken authRequest;
         try{
-            User user = new ObjectMapper().readValue(request.getInputStream(), User.class);
+            final User user = new ObjectMapper().readValue(request.getInputStream(), User.class);
             authRequest = new UsernamePasswordAuthenticationToken(user.getEmail(), user.getPw());
         } catch (IOException exception){
             throw new InputNotFoundException();
diff --git a/back/src/main/java/com/mang/example/security/config/security/CustomAuthenticationProvider.java b/back/src/main/java/com/mang/example/security/config/security/CustomAuthenticationProvider.java
index fc219e05..d518dc74 100644
--- a/back/src/main/java/com/mang/example/security/config/security/CustomAuthenticationProvider.java
+++ b/back/src/main/java/com/mang/example/security/config/security/CustomAuthenticationProvider.java
@@ -17,19 +17,19 @@
 @Log4j2
 public class CustomAuthenticationProvider implements AuthenticationProvider {
 
-    @Resource(name="userDetailsService")
+    @Resource(name="userDetailsServiceImpl")
     private UserDetailsService userDetailsService;
     private final BCryptPasswordEncoder passwordEncoder;
 
     @Override
-    public Authentication authenticate(Authentication authentication) throws AuthenticationException {
+    public Authentication authenticate(final Authentication authentication) throws AuthenticationException {
         log.error("##############");
-        UsernamePasswordAuthenticationToken token = (UsernamePasswordAuthenticationToken) authentication;
+        final UsernamePasswordAuthenticationToken token = (UsernamePasswordAuthenticationToken) authentication;
         // AuthenticaionFilter에서 생성된 토큰으로부터 아이디와 비밀번호를 조회함
-        String userEmail = token.getName();
-        String userPw = (String) token.getCredentials();
+        final String userEmail = token.getName();
+        final String userPw = (String) token.getCredentials();
         // UserDetailsService를 통해 DB에서 아이디로 사용자 조회
-        MyUserDetails userDetails = (MyUserDetails) userDetailsService.loadUserByUsername(userEmail);
+        final MyUserDetails userDetails = (MyUserDetails) userDetailsService.loadUserByUsername(userEmail);
         if (!passwordEncoder.matches(userPw, userDetails.getPassword())) {
             throw new BadCredentialsException(userDetails.getUsername() + "Invalid password");
         }
diff --git a/back/src/main/java/com/mang/example/security/config/web/WebMvcConfig.java b/back/src/main/java/com/mang/example/security/config/web/WebMvcConfig.java
index 2cca9b8f..e02ea59c 100644
--- a/back/src/main/java/com/mang/example/security/config/web/WebMvcConfig.java
+++ b/back/src/main/java/com/mang/example/security/config/web/WebMvcConfig.java
@@ -1,7 +1,7 @@
 package com.mang.example.security.config.web;
 
-import com.mang.example.security.config.interceptor.JwtTokenInterceptor;
 import com.mang.example.security.config.filter.HeaderFilter;
+import com.mang.example.security.config.interceptor.JwtTokenInterceptor;
 import org.springframework.boot.web.servlet.FilterRegistrationBean;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
diff --git a/back/src/main/java/com/mang/example/security/constants/AuthConstants.java b/back/src/main/java/com/mang/example/security/constants/AuthConstants.java
index d45d416f..ba7252e5 100644
--- a/back/src/main/java/com/mang/example/security/constants/AuthConstants.java
+++ b/back/src/main/java/com/mang/example/security/constants/AuthConstants.java
@@ -1,5 +1,9 @@
 package com.mang.example.security.constants;
 
+import lombok.AccessLevel;
+import lombok.NoArgsConstructor;
+
+@NoArgsConstructor(access = AccessLevel.PRIVATE)
 public final class AuthConstants {
 
     public static final String AUTH_HEADER = "Authorization";
diff --git a/back/src/main/java/com/mang/example/security/enums/role/UserRole.java b/back/src/main/java/com/mang/example/security/enums/role/UserRole.java
index e1ab908b..fbab90e3 100644
--- a/back/src/main/java/com/mang/example/security/enums/role/UserRole.java
+++ b/back/src/main/java/com/mang/example/security/enums/role/UserRole.java
@@ -1,15 +1,15 @@
 package com.mang.example.security.enums.role;
 
-import lombok.AllArgsConstructor;
 import lombok.Getter;
+import lombok.RequiredArgsConstructor;
 
-@AllArgsConstructor
+@RequiredArgsConstructor
 @Getter
 public enum UserRole {
 
     ROLE_USER("ROLE_USER"),
     ROLE_ADMIN("ROLE_ADMIN");
 
-    private String value;
+    private final String value;
 
 }
\ No newline at end of file
diff --git a/back/src/main/java/com/mang/example/security/handler/CustomLoginSuccessHandler.java b/back/src/main/java/com/mang/example/security/handler/CustomLoginSuccessHandler.java
index cbe7c2f6..187a6a47 100644
--- a/back/src/main/java/com/mang/example/security/handler/CustomLoginSuccessHandler.java
+++ b/back/src/main/java/com/mang/example/security/handler/CustomLoginSuccessHandler.java
@@ -15,10 +15,10 @@
 public class CustomLoginSuccessHandler extends SavedRequestAwareAuthenticationSuccessHandler {
 
     @Override
-    public void onAuthenticationSuccess(HttpServletRequest request, HttpServletResponse response,
-                                        Authentication authentication) {
-        User user = ((MyUserDetails) authentication.getPrincipal()).getUser();
-        String token = TokenUtils.generateJwtToken(user);
+    public void onAuthenticationSuccess(final HttpServletRequest request, final HttpServletResponse response,
+                                        final Authentication authentication) {
+        final User user = ((MyUserDetails) authentication.getPrincipal()).getUser();
+        final String token = TokenUtils.generateJwtToken(user);
         response.addHeader(AuthConstants.AUTH_HEADER, AuthConstants.TOKEN_TYPE + " " + token);
     }
 
diff --git a/back/src/main/java/com/mang/example/security/utils/TokenUtils.java b/back/src/main/java/com/mang/example/security/utils/TokenUtils.java
index 33a7df57..346bd337 100644
--- a/back/src/main/java/com/mang/example/security/utils/TokenUtils.java
+++ b/back/src/main/java/com/mang/example/security/utils/TokenUtils.java
@@ -3,7 +3,8 @@
 import com.mang.example.security.app.user.domain.User;
 import com.mang.example.security.enums.role.UserRole;
 import io.jsonwebtoken.*;
-import lombok.RequiredArgsConstructor;
+import lombok.AccessLevel;
+import lombok.NoArgsConstructor;
 import lombok.extern.log4j.Log4j2;
 
 import javax.crypto.spec.SecretKeySpec;
@@ -15,6 +16,7 @@
 import java.util.Map;
 
 @Log4j2
+@NoArgsConstructor(access = AccessLevel.PRIVATE)
 public final class TokenUtils {
 
     private static final String secretKey = "ThisIsA_SecretKeyForJwtExample";
diff --git a/frontend/package-lock.json b/frontend/package-lock.json
index 3a2af730..eaa1968c 100644
--- a/frontend/package-lock.json
+++ b/frontend/package-lock.json
@@ -334,6 +334,12 @@
         "uri-js": "^4.2.2"
       }
     },
+    "ajv-errors": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/ajv-errors/-/ajv-errors-1.0.1.tgz",
+      "integrity": "sha512-DCRfO/4nQ+89p/RK43i8Ezd41EqdGIU4ld7nGF8OQ14oc/we5rEntLCUa7+jrn3nn83BosfwZA0wb4pon2o8iQ==",
+      "dev": true
+    },
     "ajv-keywords": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/ajv-keywords/-/ajv-keywords-2.1.1.tgz",
@@ -363,6 +369,12 @@
       "dev": true,
       "optional": true
     },
+    "ansi-colors": {
+      "version": "3.2.4",
+      "resolved": "https://registry.npmjs.org/ansi-colors/-/ansi-colors-3.2.4.tgz",
+      "integrity": "sha512-hHUXGagefjN2iRrID63xckIvotOXOojhQKWIPUZ4mNUZ9nLZW+7FMNoE1lOkEhNWYsx/7ysGIuJYCiMAA9FnrA==",
+      "dev": true
+    },
     "ansi-escapes": {
       "version": "3.2.0",
       "resolved": "https://registry.npmjs.org/ansi-escapes/-/ansi-escapes-3.2.0.tgz",
@@ -3838,6 +3850,46 @@
       "integrity": "sha1-s2nW+128E+7PUk+RsHD+7cNXzzQ=",
       "dev": true
     },
+    "default-gateway": {
+      "version": "2.7.2",
+      "resolved": "https://registry.npmjs.org/default-gateway/-/default-gateway-2.7.2.tgz",
+      "integrity": "sha512-lAc4i9QJR0YHSDFdzeBQKfZ1SRDG3hsJNEkrpcZa8QhBfidLAilT60BDEIVUUGqosFp425KOgB3uYqcnQrWafQ==",
+      "dev": true,
+      "requires": {
+        "execa": "^0.10.0",
+        "ip-regex": "^2.1.0"
+      },
+      "dependencies": {
+        "cross-spawn": {
+          "version": "6.0.5",
+          "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-6.0.5.tgz",
+          "integrity": "sha512-eTVLrBSt7fjbDygz805pMnstIs2VTBNkRm0qxZd+M7A5XDdxVRWO5MxGBXZhjY4cqLYLdtrGqRf8mBPmzwSpWQ==",
+          "dev": true,
+          "requires": {
+            "nice-try": "^1.0.4",
+            "path-key": "^2.0.1",
+            "semver": "^5.5.0",
+            "shebang-command": "^1.2.0",
+            "which": "^1.2.9"
+          }
+        },
+        "execa": {
+          "version": "0.10.0",
+          "resolved": "https://registry.npmjs.org/execa/-/execa-0.10.0.tgz",
+          "integrity": "sha512-7XOMnz8Ynx1gGo/3hyV9loYNPWM94jG3+3T3Y8tsfSstFmETmENCMU/A/zj8Lyaj1lkgEepKepvd6240tBRvlw==",
+          "dev": true,
+          "requires": {
+            "cross-spawn": "^6.0.0",
+            "get-stream": "^3.0.0",
+            "is-stream": "^1.1.0",
+            "npm-run-path": "^2.0.0",
+            "p-finally": "^1.0.0",
+            "signal-exit": "^3.0.0",
+            "strip-eof": "^1.0.0"
+          }
+        }
+      }
+    },
     "define-properties": {
       "version": "1.1.3",
       "resolved": "https://registry.npmjs.org/define-properties/-/define-properties-1.1.3.tgz",
@@ -4932,12 +4984,12 @@
       "dev": true
     },
     "eventsource": {
-      "version": "0.1.6",
-      "resolved": "https://registry.npmjs.org/eventsource/-/eventsource-0.1.6.tgz",
-      "integrity": "sha1-Cs7ehJ7X3RzMMsgRuxG5RNTykjI=",
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/eventsource/-/eventsource-1.1.0.tgz",
+      "integrity": "sha512-VSJjT5oCNrFvCS6igjzPAt5hBzQ2qPBFIbJ03zLI9SE0mxwZpMw6BfJrbFHm1a141AavMEB8JHmBhWAd66PfCg==",
       "dev": true,
       "requires": {
-        "original": ">=0.0.5"
+        "original": "^1.0.0"
       }
     },
     "evp_bytestokey": {
@@ -6703,15 +6755,15 @@
       }
     },
     "http-proxy-middleware": {
-      "version": "0.19.2",
-      "resolved": "https://registry.npmjs.org/http-proxy-middleware/-/http-proxy-middleware-0.19.2.tgz",
-      "integrity": "sha512-aYk1rTKqLTus23X3L96LGNCGNgWpG4cG0XoZIT1GUPhhulEHX/QalnO6Vbo+WmKWi4AL2IidjuC0wZtbpg0yhQ==",
+      "version": "0.18.0",
+      "resolved": "https://registry.npmjs.org/http-proxy-middleware/-/http-proxy-middleware-0.18.0.tgz",
+      "integrity": "sha512-Fs25KVMPAIIcgjMZkVHJoKg9VcXcC1C8yb9JUgeDvVXY0S/zgVIhMb+qVswDIgtJe2DfckMSY2d6TuTEutlk6Q==",
       "dev": true,
       "requires": {
-        "http-proxy": "^1.18.1",
+        "http-proxy": "^1.16.2",
         "is-glob": "^4.0.0",
-        "lodash": "^4.17.11",
-        "micromatch": "^3.1.10"
+        "lodash": "^4.17.5",
+        "micromatch": "^3.1.9"
       },
       "dependencies": {
         "arr-diff": {
@@ -6755,12 +6807,6 @@
             }
           }
         },
-        "eventemitter3": {
-          "version": "4.0.7",
-          "resolved": "https://registry.npmjs.org/eventemitter3/-/eventemitter3-4.0.7.tgz",
-          "integrity": "sha512-8guHBZCwKnFhYdHr2ysuRWErTwhoN2X8XELRlrRwpmfeY2jjuUN4taQMsULKUVo1K4DvZl+0pgfyoysHxvmvEw==",
-          "dev": true
-        },
         "expand-brackets": {
           "version": "2.1.4",
           "resolved": "https://registry.npmjs.org/expand-brackets/-/expand-brackets-2.1.4.tgz",
@@ -6912,17 +6958,6 @@
             }
           }
         },
-        "http-proxy": {
-          "version": "1.18.1",
-          "resolved": "https://registry.npmjs.org/http-proxy/-/http-proxy-1.18.1.tgz",
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+      "resolved": "https://registry.npmjs.org/webpack-log/-/webpack-log-2.0.0.tgz",
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diff --git a/frontend/package.json b/frontend/package.json
index fe49aea8..a580b00e 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -87,7 +87,7 @@
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     "webpack": "^3.6.0",
     "webpack-bundle-analyzer": "^3.3.2",
-    "webpack-dev-server": "^2.9.1",
+    "webpack-dev-server": "^2.11.4",
     "webpack-merge": "^4.1.0"
   },
   "engines": {