diff --git a/spring-boot-modules/spring-boot-keycloak/src/main/java/com/baeldung/keycloak/SecurityConfig.java b/spring-boot-modules/spring-boot-keycloak/src/main/java/com/baeldung/keycloak/SecurityConfig.java
index 826f475a6e..c3f87627ff 100644
--- a/spring-boot-modules/spring-boot-keycloak/src/main/java/com/baeldung/keycloak/SecurityConfig.java
+++ b/spring-boot-modules/spring-boot-keycloak/src/main/java/com/baeldung/keycloak/SecurityConfig.java
@@ -1,42 +1,31 @@
 package com.baeldung.keycloak;
 
-import org.keycloak.adapters.springboot.KeycloakSpringBootConfigResolver;
-import org.keycloak.adapters.springsecurity.KeycloakConfiguration;
-import org.keycloak.adapters.springsecurity.authentication.KeycloakAuthenticationProvider;
-import org.keycloak.adapters.springsecurity.config.KeycloakWebSecurityConfigurerAdapter;
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.annotation.Bean;
-import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
+import org.springframework.context.annotation.Configuration;
 import org.springframework.security.config.annotation.web.builders.HttpSecurity;
-import org.springframework.security.core.authority.mapping.SimpleAuthorityMapper;
+import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
+import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
 import org.springframework.security.core.session.SessionRegistryImpl;
 import org.springframework.security.web.authentication.session.RegisterSessionAuthenticationStrategy;
 import org.springframework.security.web.authentication.session.SessionAuthenticationStrategy;
 
-@KeycloakConfiguration
-class SecurityConfig extends KeycloakWebSecurityConfigurerAdapter {
-    // Submits the KeycloakAuthenticationProvider to the AuthenticationManager
-    @Autowired
-    public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
-        KeycloakAuthenticationProvider keycloakAuthenticationProvider = keycloakAuthenticationProvider();
-        keycloakAuthenticationProvider.setGrantedAuthoritiesMapper(new SimpleAuthorityMapper());
-        auth.authenticationProvider(keycloakAuthenticationProvider);
-    }
+@Configuration
+@EnableWebSecurity
+class SecurityConfig extends WebSecurityConfigurerAdapter {
 
-    // Specifies the session authentication strategy
     @Bean
-    @Override
     protected SessionAuthenticationStrategy sessionAuthenticationStrategy() {
         return new RegisterSessionAuthenticationStrategy(new SessionRegistryImpl());
     }
 
     @Override
     protected void configure(HttpSecurity http) throws Exception {
-        super.configure(http);
         http.authorizeRequests()
-            .antMatchers("/customers*", "/users*")
-            .hasRole("user")
-            .anyRequest()
-            .permitAll();
+          .antMatchers("/customers*", "/users*")
+          .hasRole("USER")
+          .anyRequest()
+          .permitAll();
+        http.oauth2Login();
     }
+
 }