diff --git a/.github/workflows/github-actions.yml b/.github/workflows/github-actions.yml
index cf7b0e6..535e0a3 100644
--- a/.github/workflows/github-actions.yml
+++ b/.github/workflows/github-actions.yml
@@ -20,27 +20,34 @@ jobs:
         uses: actions/setup-java@v3
         with:
           distribution: 'temurin'
-          java-version: '11'
+          java-version: '17'
 
-      # 3. Spring Boot 애플리케이션 빌드
+      # 3. Gradlew 실행 권한 부여
+      - name: Grant execute permission for Gradlew
+        working-directory: ./2024-UCD_WEB_SERVER  # Spring Boot 프로젝트 폴더 경로
+        run: chmod +x gradlew
+
+      # 4. Spring Boot 애플리케이션 빌드
       - name: Build with Gradle
-        run: ./gradlew build
+        working-directory: ./2024-UCD_WEB_SERVER  # Spring Boot 프로젝트 폴더로 이동
+        run: ./gradlew clean build -x test
 
-      # 4. Docker 이미지 빌드
+      # 5. Docker 이미지 빌드
       - name: Build Docker image
+        working-directory: ./2024-UCD_WEB_SERVER  # Docker 빌드를 위해 동일 경로 설정
         run: |
           docker build -t eotaegyu/keynote.app:latest .
 
-      # 5. Docker Hub 로그인 (GitHub Secrets 사용)
+      # 6. Docker Hub 로그인 (GitHub Secrets 사용)
       - name: Log in to Docker Hub
-        run: echo "${{ secrets.DOCKERHUB_USERNAME }}:${{ secrets.DOCKERHUB_TOKEN }}" | docker login -u ${{ secrets.DOCKERHUB_USERNAME }} --password-stdin
+        run: echo "${{ secrets.DOCKERHUB_TOKEN }}" | docker login -u ${{ secrets.DOCKERHUB_USERNAME }} --password-stdin
 
-      # 6. Docker Hub에 이미지 푸시
+      # 7. Docker Hub에 이미지 푸시
       - name: Push Docker image to Docker Hub
         run: |
           docker push eotaegyu/keynote.app:latest
 
-  # GCP 인스턴스에서 Docker 이미지를 풀링하고 업데이트하는 단계
+  # GCP 인스턴스에서 Docker 이미지를 풀링하고 업데이트하는 단계.
   deploy:
     runs-on: ubuntu-latest
     needs: build
@@ -54,6 +61,6 @@ jobs:
           key: ${{ secrets.GCP_SSH_PRIVATE_KEY }}
           port: 22
           script: |
-            docker pull eotaegyu/keynote.a
-            docker-compose down
-            docker-compose up -d
+            sudo docker pull eotaegyu/keynote.app:latest
+            sudo docker-compose down
+            sudo docker-compose up -d
diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 2d4d03a..0bbc10c 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -5,12 +5,14 @@
   </component>
   <component name="ChangeListManager">
     <list default="true" id="4c016dd0-14dc-4d61-af8f-c93d5a74c31e" name="Changes" comment="">
-      <change afterPath="$PROJECT_DIR$/.github/workflows/github-actions.yml" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/.idea/compiler.xml" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/.idea/jarRepositories.xml" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/.idea/modules/keynote.main.iml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/.idea/modules.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/modules.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/.github/workflows/github-actions.yml" beforeDir="false" afterPath="$PROJECT_DIR$/.github/workflows/github-actions.yml" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/erd.png" beforeDir="false" afterPath="$PROJECT_DIR$/mysql/erd.png" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/gitmessage.txt" beforeDir="false" afterPath="$PROJECT_DIR$/mysql/gitmessage.txt" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/keynot_SQL.sql" beforeDir="false" afterPath="$PROJECT_DIR$/mysql/keynot_SQL.sql" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/keynote.png" beforeDir="false" afterPath="$PROJECT_DIR$/mysql/keynote.png" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/keynote_erd.mwb" beforeDir="false" afterPath="$PROJECT_DIR$/mysql/keynote_erd.mwb" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/keynote_erd.mwb.bak" beforeDir="false" afterPath="$PROJECT_DIR$/mysql/keynote_erd.mwb.bak" afterDir="false" />
     </list>
     <option name="SHOW_DIALOG" value="false" />
     <option name="HIGHLIGHT_CONFLICTS" value="true" />
@@ -27,7 +29,12 @@
       <state>
         <projects_view>
           <tree_state>
-            <expand />
+            <expand>
+              <path>
+                <item name="" type="6a2764b6:ExternalProjectsStructure$RootNode" />
+                <item name="keynote" type="f1a62948:ProjectNode" />
+              </path>
+            </expand>
             <select />
           </tree_state>
         </projects_view>
@@ -48,22 +55,28 @@
     <option name="hideEmptyMiddlePackages" value="true" />
     <option name="showLibraryContents" value="true" />
   </component>
-  <component name="PropertiesComponent"><![CDATA[{
-  "keyToString": {
-    "RunOnceActivity.OpenProjectViewOnStart": "true",
-    "RunOnceActivity.ShowReadmeOnStart": "true",
-    "SHARE_PROJECT_CONFIGURATION_FILES": "true",
-    "git-widget-placeholder": "main",
-    "kotlin-language-version-configured": "true",
-    "last_opened_file_path": "C:/Users/wkdrn/Desktop/ucd/2024-UCD_WEB_SERVER",
-    "node.js.detected.package.eslint": "true",
-    "node.js.detected.package.tslint": "true",
-    "node.js.selected.package.eslint": "(autodetect)",
-    "node.js.selected.package.tslint": "(autodetect)",
-    "nodejs_package_manager_path": "npm",
-    "vue.rearranger.settings.migration": "true"
+  <component name="PropertiesComponent">{
+  &quot;keyToString&quot;: {
+    &quot;RunOnceActivity.OpenProjectViewOnStart&quot;: &quot;true&quot;,
+    &quot;RunOnceActivity.ShowReadmeOnStart&quot;: &quot;true&quot;,
+    &quot;SHARE_PROJECT_CONFIGURATION_FILES&quot;: &quot;true&quot;,
+    &quot;git-widget-placeholder&quot;: &quot;main&quot;,
+    &quot;kotlin-language-version-configured&quot;: &quot;true&quot;,
+    &quot;last_opened_file_path&quot;: &quot;C:/Users/wkdrn/Desktop/ucd/2024-UCD_WEB_SERVER&quot;,
+    &quot;node.js.detected.package.eslint&quot;: &quot;true&quot;,
+    &quot;node.js.detected.package.tslint&quot;: &quot;true&quot;,
+    &quot;node.js.selected.package.eslint&quot;: &quot;(autodetect)&quot;,
+    &quot;node.js.selected.package.tslint&quot;: &quot;(autodetect)&quot;,
+    &quot;nodejs_package_manager_path&quot;: &quot;npm&quot;,
+    &quot;vue.rearranger.settings.migration&quot;: &quot;true&quot;
   }
-}]]></component>
+}</component>
+  <component name="RecentsManager">
+    <key name="MoveFile.RECENT_KEYS">
+      <recent name="C:\Users\wkdrn\Desktop\ucd\2024-UCD_WEB_SERVER" />
+      <recent name="C:\Users\wkdrn\Desktop\ucd\2024-UCD_WEB_SERVER\2024-UCD_WEB_SERVER" />
+    </key>
+  </component>
   <component name="SpellCheckerSettings" RuntimeDictionaries="0" Folders="0" CustomDictionaries="0" DefaultDictionary="application-level" UseSingleDictionary="true" transferred="true" />
   <component name="TaskManager">
     <task active="true" id="Default" summary="Default task">
@@ -75,10 +88,24 @@
       <workItem from="1725325958307" duration="217000" />
       <workItem from="1725326191396" duration="15000" />
       <workItem from="1728627565187" duration="893000" />
+      <workItem from="1728631072058" duration="241000" />
+      <workItem from="1728631380628" duration="5761000" />
+      <workItem from="1728880458181" duration="111000" />
     </task>
     <servers />
   </component>
   <component name="TypeScriptGeneratedFilesManager">
     <option name="version" value="3" />
   </component>
+  <component name="Vcs.Log.Tabs.Properties">
+    <option name="TAB_STATES">
+      <map>
+        <entry key="MAIN">
+          <value>
+            <State />
+          </value>
+        </entry>
+      </map>
+    </option>
+  </component>
 </project>
\ No newline at end of file
diff --git a/2024-UCD_WEB_SERVER/src/main/java/com/ucd/keynote/domain/category/service/CategoryService.java b/2024-UCD_WEB_SERVER/src/main/java/com/ucd/keynote/domain/category/service/CategoryService.java
index 30f0a72..23615dc 100644
--- a/2024-UCD_WEB_SERVER/src/main/java/com/ucd/keynote/domain/category/service/CategoryService.java
+++ b/2024-UCD_WEB_SERVER/src/main/java/com/ucd/keynote/domain/category/service/CategoryService.java
@@ -59,7 +59,7 @@ public List<CategoryResponseDTO> getCategories(Long channelId){
                 .map(category -> CategoryResponseDTO.builder()
                         .categoryId(category.getCategoryId())
                         .name(category.getName())
-                        .channelId(channel.getChannelId())
+                        .channelId(channelId)
                         .createdAt(category.getCreatedAt())
                         .build())
                 .collect(Collectors.toList());
diff --git a/erd.png b/mysql/erd.png
similarity index 100%
rename from erd.png
rename to mysql/erd.png
diff --git a/gitmessage.txt b/mysql/gitmessage.txt
similarity index 100%
rename from gitmessage.txt
rename to mysql/gitmessage.txt
diff --git a/keynot_SQL.sql b/mysql/keynot_SQL.sql
similarity index 100%
rename from keynot_SQL.sql
rename to mysql/keynot_SQL.sql
diff --git a/keynote.png b/mysql/keynote.png
similarity index 100%
rename from keynote.png
rename to mysql/keynote.png
diff --git a/keynote_erd.mwb b/mysql/keynote_erd.mwb
similarity index 100%
rename from keynote_erd.mwb
rename to mysql/keynote_erd.mwb
diff --git a/keynote_erd.mwb.bak b/mysql/keynote_erd.mwb.bak
similarity index 100%
rename from keynote_erd.mwb.bak
rename to mysql/keynote_erd.mwb.bak