diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 3276bf4bc..daf43976f 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -27,6 +27,7 @@ env:
   DEV_VITE_GA_ID: ${{secrets.DEV_VITE_GA_ID}}
   UID: ${{secrets.UID}}
   OPENAI_API_KEY: ${{secrets.OPENAI_API_KEY}}
+  TEST_USER: ${{secrets.TEST_USER}}
   STAGE: dev
 
 jobs:
diff --git a/.github/workflows/pr.yml b/.github/workflows/pr.yml
index 4f24a8856..4b61a4abf 100644
--- a/.github/workflows/pr.yml
+++ b/.github/workflows/pr.yml
@@ -34,6 +34,7 @@ env:
   DEV_VITE_GA_ID: ${{secrets.DEV_VITE_GA_ID}}
   UID: ${{secrets.UID}}
   OPENAI_API_KEY: ${{secrets.OPENAI_API_KEY}}
+  TEST_USER: ${{secrets.TEST_USER}}
   STAGE: dev
 
 jobs:
diff --git a/.github/workflows/push.yml b/.github/workflows/push.yml
index ee046c40b..0c7a608e3 100644
--- a/.github/workflows/push.yml
+++ b/.github/workflows/push.yml
@@ -31,6 +31,7 @@ env:
   MASTER_VITE_GA_ID: ${{secrets.VITE_GA_ID}}
   DEV_VITE_GA_ID: ${{secrets.DEV_VITE_GA_ID}}
   OPENAI_API_KEY: ${{secrets.OPENAI_API_KEY}}
+  TEST_USER: ${{secrets.TEST_USER}}
   STAGE: dev
 
 jobs:
diff --git a/lib/configs/lambda/environment.ts b/lib/configs/lambda/environment.ts
index 8128e15e7..1fa410672 100644
--- a/lib/configs/lambda/environment.ts
+++ b/lib/configs/lambda/environment.ts
@@ -6,3 +6,5 @@ export const SLACK_WEBHOOK_URL = process.env.SLACK_WEBHOOK_URL!;
 export const AWS_USER_POOL_ID = process.env.AWS_USER_POOL_ID!;
 
 export const OPENAI_API_KEY = process.env.OPENAI_API_KEY!;
+
+export const TEST_USER = process.env.TEST_USER!;
diff --git a/lib/constructs/common/lambda-functions.ts b/lib/constructs/common/lambda-functions.ts
index 01de8ecf1..e3acab970 100644
--- a/lib/constructs/common/lambda-functions.ts
+++ b/lib/constructs/common/lambda-functions.ts
@@ -12,6 +12,7 @@ import {
   SLACK_WEBHOOK_URL,
   AWS_USER_POOL_ID,
   OPENAI_API_KEY,
+  TEST_USER,
 } from '../../configs/lambda/environment';
 
 interface FunctionsProps {
@@ -227,7 +228,7 @@ export class PreSignupWasedaMailValidator extends Construct {
       memorySize: 128,
       runtime: lambda.Runtime.PYTHON_3_9,
       timeout: Duration.seconds(3),
-    });
+    }).addEnvironment('TEST_USER', TEST_USER);
   }
 }
 
diff --git a/src/lambda/signup-validator/index.py b/src/lambda/signup-validator/index.py
index 04592eefe..70bbed0de 100644
--- a/src/lambda/signup-validator/index.py
+++ b/src/lambda/signup-validator/index.py
@@ -1,9 +1,12 @@
+from utils import test_user
+
+
 def handler(event, context):
     email = event["request"]["userAttributes"]["email"]
     domain = email.split('@')[1]
 
     # Check for the specific test email address
-    if email == "t56299097@gmail.com":
+    if email == test_user:
         event["response"]["autoConfirmUser"] = True
         return event
 
diff --git a/src/lambda/signup-validator/utils.py b/src/lambda/signup-validator/utils.py
new file mode 100644
index 000000000..f081a5b45
--- /dev/null
+++ b/src/lambda/signup-validator/utils.py
@@ -0,0 +1,3 @@
+import os
+
+test_user = os.getenv('TEST_USER')