diff --git a/.idea/compiler.xml b/.idea/compiler.xml
index 2b8d332..0a534be 100644
--- a/.idea/compiler.xml
+++ b/.idea/compiler.xml
@@ -8,7 +8,6 @@
         <outputRelativeToContentRoot value="true" />
         <processorPath useClasspath="false">
           <entry name="$MAVEN_REPOSITORY$/org/projectlombok/lombok/1.18.44/lombok-1.18.44.jar" />
-          <entry name="$MAVEN_REPOSITORY$/org/projectlombok/lombok/1.18.44/lombok-1.18.44.jar" />
         </processorPath>
         <module name="bibimbap" />
       </profile>
diff --git a/.idea/jarRepositories.xml b/.idea/jarRepositories.xml
index 712ab9d..79c291d 100644
--- a/.idea/jarRepositories.xml
+++ b/.idea/jarRepositories.xml
@@ -11,6 +11,11 @@
       <option name="name" value="Maven Central repository" />
       <option name="url" value="https://repo1.maven.org/maven2" />
     </remote-repository>
+    <remote-repository>
+      <option name="id" value="spring-snapshots" />
+      <option name="name" value="Spring Snapshots" />
+      <option name="url" value="https://repo.spring.io/snapshot" />
+    </remote-repository>
     <remote-repository>
       <option name="id" value="jboss.community" />
       <option name="name" value="JBoss Community repository" />
diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index d291ad3..592e44d 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -1,111 +1,4 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
-  <component name="AutoImportSettings">
-    <option name="autoReloadType" value="SELECTIVE" />
-  </component>
-  <component name="ChangeListManager">
-    <list default="true" id="670cbbf8-78d0-44fc-aa6d-cbb25e2ef6ce" name="변경" comment="">
-      <change beforePath="$PROJECT_DIR$/.gitignore" beforeDir="false" afterPath="$PROJECT_DIR$/.gitignore" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/.idea/compiler.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/compiler.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/.idea/misc.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/misc.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/.idea/vcs.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/vcs.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/.vscode/settings.json" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/HELP.md" beforeDir="false" afterPath="$PROJECT_DIR$/HELP.md" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/LICENSE" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/README.md" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/docker-compose.yml" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/mvnw" beforeDir="false" afterPath="$PROJECT_DIR$/mvnw" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/mvnw.cmd" beforeDir="false" afterPath="$PROJECT_DIR$/mvnw.cmd" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/pom.xml" beforeDir="false" afterPath="$PROJECT_DIR$/pom.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/main/java/com/pandoli365/bibimbap/BibimbapApplication.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/com/pandoli365/bibimbap/BibimbapApplication.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/main/java/com/pandoli365/bibimbap/ServletInitializer.java" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/main/java/com/pandoli365/bibimbap/config/WebConfig.java" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/main/java/com/pandoli365/bibimbap/domain/Game.java" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/main/java/com/pandoli365/bibimbap/domain/UserAccount.java" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/main/java/com/pandoli365/bibimbap/repository/GameRepository.java" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/main/java/com/pandoli365/bibimbap/repository/UserAccountRepository.java" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/main/java/com/pandoli365/bibimbap/security/AccountUserDetailsService.java" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/main/java/com/pandoli365/bibimbap/security/SecurityConfig.java" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/main/java/com/pandoli365/bibimbap/service/FileStorageService.java" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/main/java/com/pandoli365/bibimbap/service/GameService.java" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/main/java/com/pandoli365/bibimbap/service/RegistrationService.java" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/main/java/com/pandoli365/bibimbap/web/GameController.java" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/main/java/com/pandoli365/bibimbap/web/HomeController.java" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/main/java/com/pandoli365/bibimbap/web/LoginController.java" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/main/java/com/pandoli365/bibimbap/web/PlayController.java" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/main/java/com/pandoli365/bibimbap/web/RegisterController.java" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/main/java/com/pandoli365/bibimbap/web/dto/GameCreateForm.java" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/main/java/com/pandoli365/bibimbap/web/dto/RegisterForm.java" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/main/resources/application-dev.yml" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/main/resources/application.properties.example" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/main/resources/application.yml" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/main/resources/static/css/main.css" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/main/resources/static/img/logo.png" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/main/webapp/WEB-INF/jsp/games/new.jsp" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/main/webapp/WEB-INF/jsp/home.jsp" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/main/webapp/WEB-INF/jsp/login.jsp" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/main/webapp/WEB-INF/jsp/register.jsp" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/test/java/com/pandoli365/bibimbap/BibimbapApplicationTests.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/test/java/com/pandoli365/bibimbap/BibimbapApplicationTests.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/test/resources/application-test.properties" beforeDir="false" />
-    </list>
-    <option name="SHOW_DIALOG" value="false" />
-    <option name="HIGHLIGHT_CONFLICTS" value="true" />
-    <option name="HIGHLIGHT_NON_ACTIVE_CHANGELIST" value="false" />
-    <option name="LAST_RESOLUTION" value="IGNORE" />
-  </component>
-  <component name="Git.Settings">
-    <option name="RECENT_GIT_ROOT_PATH" value="$PROJECT_DIR$" />
-  </component>
-  <component name="MavenImportPreferences">
-    <option name="generalSettings">
-      <MavenGeneralSettings>
-        <option name="mavenHomeTypeForPersistence" value="WRAPPER" />
-      </MavenGeneralSettings>
-    </option>
-  </component>
-  <component name="ProjectColorInfo"><![CDATA[{
-  "customColor": "",
-  "associatedIndex": 8
-}]]></component>
-  <component name="ProjectId" id="3COOIMCxk1Jj1CxKFSlG6KxpB6d" />
-  <component name="ProjectViewState">
-    <option name="hideEmptyMiddlePackages" value="true" />
-    <option name="showLibraryContents" value="true" />
-    <option name="showMembers" value="true" />
-    <option name="showVisibilityIcons" value="true" />
-  </component>
-  <component name="PropertiesComponent"><![CDATA[{
-  "keyToString": {
-    "ModuleVcsDetector.initialDetectionPerformed": "true",
-    "RunOnceActivity.ShowReadmeOnStart": "true",
-    "git-widget-placeholder": "main",
-    "kotlin-language-version-configured": "true",
-    "project.structure.last.edited": "모듈",
-    "project.structure.proportion": "0.15",
-    "project.structure.side.proportion": "0.2"
-  }
-}]]></component>
-  <component name="RecentsManager">
-    <key name="MoveFile.RECENT_KEYS">
-      <recent name="E:\git\bibimbap\src\main\resources\dev" />
-    </key>
-  </component>
-  <component name="SharedIndexes">
-    <attachedChunks>
-      <set>
-        <option value="bundled-jdk-30f59d01ecdd-26cb7f24e5b0-intellij.indexing.shared.core-IU-253.29346.240" />
-      </set>
-    </attachedChunks>
-  </component>
-  <component name="TaskManager">
-    <task active="true" id="Default" summary="디폴트 작업">
-      <changelist id="670cbbf8-78d0-44fc-aa6d-cbb25e2ef6ce" name="변경" comment="" />
-      <created>1776253069410</created>
-      <option name="number" value="Default" />
-      <option name="presentableId" value="Default" />
-      <updated>1776253069410</updated>
-    </task>
-    <servers />
-  </component>
+  <component name="ProjectId" id="3COUL5RY7op3FL1tvImKjMX11Vl" />
 </project>
\ No newline at end of file
diff --git a/HELP.md b/HELP.md
index 78b0ab1..8cb8c60 100644
--- a/HELP.md
+++ b/HELP.md
@@ -5,8 +5,8 @@
 For further reference, please consider the following sections:
 
 * [Official Apache Maven documentation](https://maven.apache.org/guides/index.html)
-* [Spring Boot Maven Plugin Reference Guide](https://docs.spring.io/spring-boot/4.0.5/maven-plugin)
-* [Create an OCI image](https://docs.spring.io/spring-boot/4.0.5/maven-plugin/build-image.html)
+* [Spring Boot Maven Plugin Reference Guide](https://docs.spring.io/spring-boot/3.5.14-SNAPSHOT/maven-plugin)
+* [Create an OCI image](https://docs.spring.io/spring-boot/3.5.14-SNAPSHOT/maven-plugin/build-image.html)
 
 ### Maven Parent overrides
 
diff --git a/pom.xml b/pom.xml
index 94a716c..6fe48a7 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-parent</artifactId>
-        <version>4.0.5</version>
+        <version>3.5.14-SNAPSHOT</version>
         <relativePath/> <!-- lookup parent from repository -->
     </parent>
     <groupId>com.pandoli365</groupId>
@@ -33,7 +33,7 @@
     <dependencies>
         <dependency>
             <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-webmvc</artifactId>
+            <artifactId>spring-boot-starter-web</artifactId>
         </dependency>
 
         <dependency>
@@ -105,5 +105,25 @@
             </plugin>
         </plugins>
     </build>
+    <repositories>
+        <repository>
+            <id>spring-snapshots</id>
+            <name>Spring Snapshots</name>
+            <url>https://repo.spring.io/snapshot</url>
+            <releases>
+                <enabled>false</enabled>
+            </releases>
+        </repository>
+    </repositories>
+    <pluginRepositories>
+        <pluginRepository>
+            <id>spring-snapshots</id>
+            <name>Spring Snapshots</name>
+            <url>https://repo.spring.io/snapshot</url>
+            <releases>
+                <enabled>false</enabled>
+            </releases>
+        </pluginRepository>
+    </pluginRepositories>
 
 </project>
diff --git a/src/main/resources/application.properties b/src/main/resources/application.properties
new file mode 100644
index 0000000..cbec0c3
--- /dev/null
+++ b/src/main/resources/application.properties
@@ -0,0 +1 @@
+spring.application.name=bibimbap
diff --git a/src/main/resources/dev/application.properties b/src/main/resources/dev/application.properties
deleted file mode 100644
index 30a5f68..0000000
--- a/src/main/resources/dev/application.properties
+++ /dev/null
@@ -1,17 +0,0 @@
-spring.application.name=bibimbap
-spring.profiles.active=dev
-
-spring.mvc.view.prefix=/WEB-INF/views/
-spring.mvc.view.suffix=.jsp
-
-spring.config.import=classpath:db.properties, classpath:common.properties
-
-server.address=0.0.0.0
-
-server.servlet.encoding.force-response=true
-
-spring.servlet.multipart.max-file-size=10GB
-spring.servlet.multipart.max-request-size=10GB
-
-mybatis.configuration.log-impl=org.apache.ibatis.logging.slf4j.Slf4jImpl
-logging.level.org.apache.ibatis=TRACE
\ No newline at end of file
diff --git a/src/main/resources/dev/db.properties b/src/main/resources/dev/db.properties
deleted file mode 100644
index 5b19e98..0000000
--- a/src/main/resources/dev/db.properties
+++ /dev/null
@@ -1,9 +0,0 @@
-spring.datasource.driver-class-name=org.postgresql.Driver
-spring.datasource.url=jdbc:postgresql://192.168.1.3:5432/project_furry?currentSchema=library_live
-spring.datasource.username=furry_images
-spring.datasource.password=L5qOdLNFB6mIRjO
-
-mybatis.mapper-locations=classpath:mappers/*.xml
-
-## resultType aliases ##
-mybatis.type-aliases-package=com.pandoli365.fursuit_library.model.user
\ No newline at end of file
diff --git a/src/main/resources/live/application.properties b/src/main/resources/live/application.properties
deleted file mode 100644
index 886e044..0000000
--- a/src/main/resources/live/application.properties
+++ /dev/null
@@ -1,17 +0,0 @@
-spring.application.name=bibimbap
-spring.profiles.active=live
-
-spring.mvc.view.prefix=/WEB-INF/views/
-spring.mvc.view.suffix=.jsp
-
-spring.config.import=classpath:db.properties, classpath:common.properties
-
-server.address=0.0.0.0
-
-server.servlet.encoding.force-response=true
-
-spring.servlet.multipart.max-file-size=10GB
-spring.servlet.multipart.max-request-size=10GB
-
-mybatis.configuration.log-impl=org.apache.ibatis.logging.slf4j.Slf4jImpl
-logging.level.org.apache.ibatis=TRACE
\ No newline at end of file
diff --git a/src/main/resources/live/db.properties b/src/main/resources/live/db.properties
deleted file mode 100644
index 5b19e98..0000000
--- a/src/main/resources/live/db.properties
+++ /dev/null
@@ -1,9 +0,0 @@
-spring.datasource.driver-class-name=org.postgresql.Driver
-spring.datasource.url=jdbc:postgresql://192.168.1.3:5432/project_furry?currentSchema=library_live
-spring.datasource.username=furry_images
-spring.datasource.password=L5qOdLNFB6mIRjO
-
-mybatis.mapper-locations=classpath:mappers/*.xml
-
-## resultType aliases ##
-mybatis.type-aliases-package=com.pandoli365.fursuit_library.model.user
\ No newline at end of file