diff --git a/pom.xml b/pom.xml
index 024ab08..067f033 100755
--- a/pom.xml
+++ b/pom.xml
@@ -6,7 +6,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.1.4.RELEASE</version>
+		<version>2.3.1.RELEASE</version>
 		<relativePath/> <!-- lookup parent from repository -->
 	</parent>
 	<groupId>com.example</groupId>
@@ -39,10 +39,14 @@
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-starter-security</artifactId>
 		</dependency>
+		<dependency>
+			<groupId>org.springframework.security</groupId>
+			<artifactId>spring-security-oauth2-jose</artifactId>
+		</dependency>
 		<dependency>
 			<groupId>org.springframework.security.oauth.boot</groupId>
 			<artifactId>spring-security-oauth2-autoconfigure</artifactId>
-			<version>2.1.4.RELEASE</version>
+			<version>2.3.1.RELEASE</version>
 		</dependency>
 
 		<dependency>
@@ -50,15 +54,6 @@
 			<artifactId>h2</artifactId>
 			<scope>runtime</scope>
 		</dependency>
-<!--		<dependency>-->
-<!--			<groupId>org.springframework.boot</groupId>-->
-<!--			<artifactId>spring-boot-starter-jdbc</artifactId>-->
-<!--		</dependency>-->
-<!--		<dependency>-->
-<!--			<groupId>mysql</groupId>-->
-<!--			<artifactId>mysql-connector-java</artifactId>-->
-<!--			<scope>runtime</scope>-->
-<!--		</dependency>-->
 		<dependency>
 			<groupId>org.apache.commons</groupId>
 			<artifactId>commons-lang3</artifactId>
diff --git a/src/main/java/com/example/template/config/JwkSetEndpointConfiguration.java b/src/main/java/com/example/template/config/JwkSetEndpointConfiguration.java
new file mode 100644
index 0000000..c81bcbf
--- /dev/null
+++ b/src/main/java/com/example/template/config/JwkSetEndpointConfiguration.java
@@ -0,0 +1,29 @@
+package com.example.template.config;
+
+import com.nimbusds.jose.jwk.JWKSet;
+import com.nimbusds.jose.jwk.RSAKey;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.ResponseBody;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.security.KeyPair;
+import java.security.Principal;
+import java.security.interfaces.RSAPublicKey;
+import java.util.Map;
+
+@RestController
+public class JwkSetEndpointConfiguration {
+    KeyPair keyPair;
+
+    public JwkSetEndpointConfiguration(KeyPair keyPair) {
+        this.keyPair = keyPair;
+    }
+
+    @GetMapping("/.well-known/jwks.json")
+    @ResponseBody
+    public Map<String, Object> getKey(Principal principal) {
+        RSAPublicKey publicKey = (RSAPublicKey) this.keyPair.getPublic();
+        RSAKey key = new RSAKey.Builder(publicKey).build();
+        return new JWKSet(key).toJSONObject();
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/com/example/template/config/OAuth2AuthorizationServerConfig.java b/src/main/java/com/example/template/config/OAuth2AuthorizationServerConfig.java
index 55ee9c1..ea238d6 100755
--- a/src/main/java/com/example/template/config/OAuth2AuthorizationServerConfig.java
+++ b/src/main/java/com/example/template/config/OAuth2AuthorizationServerConfig.java
@@ -59,21 +59,6 @@ public class OAuth2AuthorizationServerConfig extends AuthorizationServerConfigur
 	@Autowired
 	private Environment env;
 
-	/**
-	 * DB 설정을 별도로 하게 되면 에러가 발생한다.
-	 * @throws Exception
-	 */
-//	@Bean
-//	public DataSource oauthDataSource() {
-//
-//		DriverManagerDataSource dataSource = new DriverManagerDataSource();
-//		dataSource.setDriverClassName(env.getProperty("spring.datasource.driverClassName"));
-//		dataSource.setUrl(env.getProperty("spring.datasource.url"));
-//		dataSource.setUsername(env.getProperty("spring.datasource.username"));
-//		dataSource.setPassword(env.getProperty("spring.datasource.password"));
-//		return dataSource;
-//	}
-
 	@Override
 	public void configure(AuthorizationServerSecurityConfigurer security) throws Exception {
 		security.accessDeniedHandler((request, response, exception)->{
diff --git a/src/main/java/com/example/template/config/WebSecurityConfig.java b/src/main/java/com/example/template/config/WebSecurityConfig.java
index e007fbb..ffec78b 100755
--- a/src/main/java/com/example/template/config/WebSecurityConfig.java
+++ b/src/main/java/com/example/template/config/WebSecurityConfig.java
@@ -61,6 +61,7 @@ public class WebSecurityConfig extends WebSecurityConfigurerAdapter{
 		   .antMatchers("/js/**")
 		   .antMatchers("/favicon*/**")
 		   .antMatchers("/img/**")
+		   .antMatchers("/.well-known/jwks.json")
 		;
 	}
 
diff --git a/src/main/java/com/example/template/entity/User.java b/src/main/java/com/example/template/entity/User.java
index 12b2af3..1381f65 100755
--- a/src/main/java/com/example/template/entity/User.java
+++ b/src/main/java/com/example/template/entity/User.java
@@ -12,7 +12,7 @@ import lombok.Setter;
 import lombok.ToString;
 
 @Entity
-@Table(name = "users")
+@Table(name = "users_table")
 public class User implements UserDetails{
 
 	@Id
diff --git a/src/main/resources/application.yml b/src/main/resources/application.yml
index 838a228..2336dca 100755
--- a/src/main/resources/application.yml
+++ b/src/main/resources/application.yml
@@ -6,14 +6,7 @@ spring:
       ddl-auto: update
     properties:
       hibernate:
-        dialect: org.hibernate.dialect.MySQL57Dialect
         show_sql: true
-#  datasource:
-#    url: jdbc:mysql://104.198.86.212:3306/uengine
-#    username: root
-#    password: test1234!@
-#    # mybatis 설정시에는 driverClassName 을 넣어주어야함
-#    driverClassName: com.mysql.cj.jdbc.Driver
 
 ---
 spring: