diff --git a/.github/workflows/github-actions.yml b/.github/workflows/github-actions.yml
index fe15ae5..2769e58 100644
--- a/.github/workflows/github-actions.yml
+++ b/.github/workflows/github-actions.yml
@@ -17,11 +17,11 @@ jobs:
 
       # JDK setting - github actions에서 사용할 JDK 설정 (프로젝트나 AWS의 java 버전과 달라도 무방)
       - uses: actions/checkout@v3
-      - name: Set up JDK 17
+      - name: Set up JDK 11
         uses: actions/setup-java@v3
         with:
-          java-version: '17'
-          distribution: 'adopt'
+          java-version: '11'
+          distribution: 'temurin'
 
       # gradle caching - 빌드 시간 향상
       - name: Gradle Caching
diff --git a/Dockerfile b/Dockerfile
index 27b4577..09596ac 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
-# open jdk 17 버전의 환경을 구성
-FROM openjdk:17-alpine
+# open jdk 11 버전의 환경을 구성
+FROM adoptopenjdk/openjdk11:latest
 
 # build가 되는 시점에 JAR_FILE이라는 변수 명에 build/libs/*.jar 선언
 # build/libs - gradle로 빌드했을 때 jar 파일이 생성되는 경로
diff --git a/build.gradle b/build.gradle
index 01ab886..0b3b756 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,14 +1,14 @@
 plugins {
 	id 'java'
-	id 'org.springframework.boot' version '3.1.4'
-	id 'io.spring.dependency-management' version '1.1.3'
+	id 'org.springframework.boot' version '2.7.14'
+	id 'io.spring.dependency-management' version '1.0.15.RELEASE'
 }
 
 group = 'com.onestep'
 version = '0.0.1-SNAPSHOT'
 
 java {
-	sourceCompatibility = '17'
+	sourceCompatibility = '11'
 }
 
 configurations {
diff --git a/src/main/java/com/onestep/server/ServerApplication.java b/src/main/java/com/onestep/server/ServerApplication.java
index a75fc2e..228435e 100644
--- a/src/main/java/com/onestep/server/ServerApplication.java
+++ b/src/main/java/com/onestep/server/ServerApplication.java
@@ -5,7 +5,9 @@
 
 @SpringBootApplication
 public class ServerApplication {
-
+	static {
+		System.setProperty("com.amazonaws.sdk.disableEc2Metadata", "true");
+	}
 	public static void main(String[] args) {
 		SpringApplication.run(ServerApplication.class, args);
 	}
diff --git a/src/main/java/com/onestep/server/entity/Answer.java b/src/main/java/com/onestep/server/entity/Answer.java
index 0cedfc7..a109664 100644
--- a/src/main/java/com/onestep/server/entity/Answer.java
+++ b/src/main/java/com/onestep/server/entity/Answer.java
@@ -1,9 +1,9 @@
 package com.onestep.server.entity;
 
-import jakarta.persistence.*;
+import javax.persistence.*;
 import lombok.*;
 import org.hibernate.annotations.ColumnDefault;
-import jakarta.persistence.Id;
+import javax.persistence.Id;
 
 import java.util.Date;
 
diff --git a/src/main/java/com/onestep/server/entity/Comment.java b/src/main/java/com/onestep/server/entity/Comment.java
index 4f5f545..ff2e35f 100644
--- a/src/main/java/com/onestep/server/entity/Comment.java
+++ b/src/main/java/com/onestep/server/entity/Comment.java
@@ -1,8 +1,8 @@
 package com.onestep.server.entity;
 
-import jakarta.persistence.*;
+import javax.persistence.*;
 import lombok.*;
-import jakarta.persistence.Id;
+import javax.persistence.Id;
 
 import java.util.Date;
 
diff --git a/src/main/java/com/onestep/server/entity/Family.java b/src/main/java/com/onestep/server/entity/Family.java
index 33f5569..77662a5 100644
--- a/src/main/java/com/onestep/server/entity/Family.java
+++ b/src/main/java/com/onestep/server/entity/Family.java
@@ -1,13 +1,13 @@
 package com.onestep.server.entity;
 
 import com.fasterxml.jackson.annotation.JsonIgnore;
-import jakarta.persistence.Column;
-import jakarta.persistence.Entity;
-import jakarta.persistence.Temporal;
-import jakarta.persistence.TemporalType;
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.Temporal;
+import javax.persistence.TemporalType;
 import lombok.*;
 import org.hibernate.annotations.ColumnDefault;
-import jakarta.persistence.Id;
+import javax.persistence.Id;
 
 import java.util.Date;
 
diff --git a/src/main/java/com/onestep/server/entity/Letter.java b/src/main/java/com/onestep/server/entity/Letter.java
index d1cfda4..5659812 100644
--- a/src/main/java/com/onestep/server/entity/Letter.java
+++ b/src/main/java/com/onestep/server/entity/Letter.java
@@ -1,8 +1,8 @@
 package com.onestep.server.entity;
 
-import jakarta.persistence.*;
+import javax.persistence.*;
 import lombok.*;
-import jakarta.persistence.Id;
+import javax.persistence.Id;
 
 import java.util.Date;
 
diff --git a/src/main/java/com/onestep/server/entity/PhotoBook.java b/src/main/java/com/onestep/server/entity/PhotoBook.java
index aedbc55..5f8a2d5 100644
--- a/src/main/java/com/onestep/server/entity/PhotoBook.java
+++ b/src/main/java/com/onestep/server/entity/PhotoBook.java
@@ -1,8 +1,8 @@
 package com.onestep.server.entity;
 
-import jakarta.persistence.*;
+import javax.persistence.*;
 import lombok.*;
-import jakarta.persistence.Id;
+import javax.persistence.Id;
 
 import java.util.Date;
 
diff --git a/src/main/java/com/onestep/server/entity/Question.java b/src/main/java/com/onestep/server/entity/Question.java
index 3f46b0a..185e9f3 100644
--- a/src/main/java/com/onestep/server/entity/Question.java
+++ b/src/main/java/com/onestep/server/entity/Question.java
@@ -1,10 +1,10 @@
 package com.onestep.server.entity;
 
-import jakarta.persistence.Column;
-import jakarta.persistence.Entity;
-import jakarta.persistence.JoinColumn;
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.JoinColumn;
 import lombok.*;
-import jakarta.persistence.Id;
+import javax.persistence.Id;
 
 @ToString
 @Getter
diff --git a/src/main/java/com/onestep/server/entity/Quiz.java b/src/main/java/com/onestep/server/entity/Quiz.java
index c54d5ad..843bb81 100644
--- a/src/main/java/com/onestep/server/entity/Quiz.java
+++ b/src/main/java/com/onestep/server/entity/Quiz.java
@@ -1,8 +1,8 @@
 package com.onestep.server.entity;
 
-import jakarta.persistence.*;
+import javax.persistence.*;
 import lombok.*;
-import jakarta.persistence.Id;
+import javax.persistence.Id;
 
 import java.util.Date;
 
diff --git a/src/main/java/com/onestep/server/entity/User.java b/src/main/java/com/onestep/server/entity/User.java
index bb41c5c..25b3e42 100644
--- a/src/main/java/com/onestep/server/entity/User.java
+++ b/src/main/java/com/onestep/server/entity/User.java
@@ -1,9 +1,9 @@
 package com.onestep.server.entity;
 
 import com.fasterxml.jackson.annotation.JsonIgnore;
-import jakarta.persistence.*;
+import javax.persistence.*;
 import lombok.*;
-import jakarta.persistence.Id;
+import javax.persistence.Id;
 
 import java.util.Date;
 
diff --git a/src/main/java/com/onestep/server/service/image/S3Uploader.java b/src/main/java/com/onestep/server/service/image/S3Uploader.java
index c65e602..50abb4c 100644
--- a/src/main/java/com/onestep/server/service/image/S3Uploader.java
+++ b/src/main/java/com/onestep/server/service/image/S3Uploader.java
@@ -3,7 +3,7 @@
 import com.amazonaws.services.s3.AmazonS3Client;
 import com.amazonaws.services.s3.model.CannedAccessControlList;
 import com.amazonaws.services.s3.model.PutObjectRequest;
-import jakarta.persistence.PersistenceContext;
+import javax.persistence.PersistenceContext;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Autowired;