diff --git a/.github/workflows/cd_prod.yml b/.github/workflows/cd_prod.yml
index 0b5dc63..490eaa7 100644
--- a/.github/workflows/cd_prod.yml
+++ b/.github/workflows/cd_prod.yml
@@ -24,8 +24,12 @@ jobs:
           java-version: '17'
           distribution: 'temurin'
 
-      - name: Set up GPT_PROMPT_SYSTEM environment variable decode
-        run: echo "GPT_PROMPT_SYSTEM=${{ secrets.GPT_PROMPT_SYSTEM }}" >> $GITHUB_ENV
+      - name: Decode GPT Prompt and Set Environment Variable
+        run: |
+          DECODED_PROMPT=$(echo "${{ secrets.GPT_PROMPT_SYSTEM }}" | base64 --decode)
+          echo "GPT_PROMPT_SYSTEM<<EOF" >> $GITHUB_ENV
+          echo "$DECODED_PROMPT" >> $GITHUB_ENV
+          echo "EOF" >> $GITHUB_ENV
 
       - name: Set yaml file
         uses: microsoft/variable-substitution@v1
@@ -42,7 +46,7 @@ jobs:
           logging.level.com.twentythree.peech: off
           logging.config: classpath:spring-logback.xml
           gpt.api.key: ${{secrets.GPT_API_KEY_PROD}}
-          gpt.prompt.system: ${{env.GPT_PROMPT_SYSTEM}}
+          gpt.prompt.system: DECODED_PROMPT=$(echo "${{ secrets.GPT_PROMPT_SYSTEM }}" | base64 --decode)
           jwt.secret.key: ${{secrets.JWT_SECRET_KEY_PROD}}
           jwt.access.key: ${{secrets.JWT_ACCESS_KEY}}
           jwt.refresh.key: ${{secrets.JWT_REFRESH_KEY}}
diff --git a/.github/workflows/ci_prod.yml b/.github/workflows/ci_prod.yml
index e2d8e14..aa87345 100644
--- a/.github/workflows/ci_prod.yml
+++ b/.github/workflows/ci_prod.yml
@@ -24,8 +24,12 @@ jobs:
           java-version: '17'
           distribution: 'temurin'
 
-      - name: Set up GPT_PROMPT_SYSTEM environment variable decode
-        run: echo "GPT_PROMPT_SYSTEM=${{ secrets.GPT_PROMPT_SYSTEM }}" >> $GITHUB_ENV
+      - name: Decode GPT Prompt and Set Environment Variable
+        run: |
+          DECODED_PROMPT=$(echo "${{ secrets.GPT_PROMPT_SYSTEM }}" | base64 --decode)
+          echo "GPT_PROMPT_SYSTEM<<EOF" >> $GITHUB_ENV
+          echo "$DECODED_PROMPT" >> $GITHUB_ENV
+          echo "EOF" >> $GITHUB_ENV
 
       - name: Set yaml file
         uses: microsoft/variable-substitution@v1
diff --git a/.github/workflows/cicd_dev.yml b/.github/workflows/cicd_dev.yml
index 764467f..db10f67 100644
--- a/.github/workflows/cicd_dev.yml
+++ b/.github/workflows/cicd_dev.yml
@@ -25,8 +25,12 @@ jobs:
         java-version: '17'
         distribution: 'temurin'
 
-    - name: Set up GPT_PROMPT_SYSTEM environment variable decode
-      run: echo "GPT_PROMPT_SYSTEM=${{ secrets.GPT_PROMPT_SYSTEM }}" >> $GITHUB_ENV
+    - name: Decode GPT Prompt and Set Environment Variable
+      run: |
+        DECODED_PROMPT=$(echo "${{ secrets.GPT_PROMPT_SYSTEM }}" | base64 --decode)
+        echo "GPT_PROMPT_SYSTEM<<EOF" >> $GITHUB_ENV
+        echo "$DECODED_PROMPT" >> $GITHUB_ENV
+        echo "EOF" >> $GITHUB_ENV
 
     - name: Set yaml file 
       uses: microsoft/variable-substitution@v1