diff --git a/src/main/java/team05/integrated_feed_backend/core/config/SecurityConfig.java b/src/main/java/team05/integrated_feed_backend/core/config/SecurityConfig.java
index c032243..747a305 100644
--- a/src/main/java/team05/integrated_feed_backend/core/config/SecurityConfig.java
+++ b/src/main/java/team05/integrated_feed_backend/core/config/SecurityConfig.java
@@ -3,11 +3,14 @@
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.security.authentication.AuthenticationManager;
+import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
 import org.springframework.security.config.annotation.authentication.configuration.AuthenticationConfiguration;
 import org.springframework.security.config.annotation.web.builders.HttpSecurity;
 import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
 import org.springframework.security.config.http.SessionCreationPolicy;
 import org.springframework.security.core.userdetails.UserDetailsService;
+import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
+import org.springframework.security.crypto.password.PasswordEncoder;
 import org.springframework.security.web.SecurityFilterChain;
 import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;
 import team05.integrated_feed_backend.module.auth.jwt.JwtUtil;
@@ -38,15 +41,24 @@ public SecurityFilterChain securityFilterChain(HttpSecurity http) throws Excepti
                 .sessionManagement(session -> session.sessionCreationPolicy(SessionCreationPolicy.STATELESS)) // 세션 사용X
                 .authorizeHttpRequests(authorize -> authorize
                         .requestMatchers("/auth/**").permitAll() // 인증 없이 접근할 수 있는 경로 설정하기 (회원가입, 로그인 등)
-                        .anyRequest().authenticated() // 그 외의 모든 요청은 인증필요
+                        .anyRequest().authenticated() // 그 외의 모든 요청 인증 필요
                 )
-                .addFilterBefore(new JwtAuthenticationFilter(jwtUtil, userDetailsService), UsernamePasswordAuthenticationFilter.class); // JWT 필터 추가
+                .addFilterBefore(jwtAuthenticationFilter(), UsernamePasswordAuthenticationFilter.class); // JWT 필터 추가
 
         return http.build();
     }
 
     @Bean
-    public AuthenticationManager authenticationManager(AuthenticationConfiguration authenticationConfiguration) throws Exception {
-        return authenticationConfiguration.getAuthenticationManager();
+    public PasswordEncoder passwordEncoder() {
+        return new BCryptPasswordEncoder();
+    }
+
+    @Bean
+    public AuthenticationManager authenticationManager(HttpSecurity http) throws Exception {
+        AuthenticationManagerBuilder authManagerBuilder = http.getSharedObject(AuthenticationManagerBuilder.class);
+        authManagerBuilder
+                .userDetailsService(userDetailsService)
+                .passwordEncoder(passwordEncoder());
+        return authManagerBuilder.build();
     }
 }