diff --git a/.github/workflows/deploy_fastapi_backend.yml b/.github/workflows/deploy_fastapi_backend.yml
index c246c47b..3e9defb3 100644
--- a/.github/workflows/deploy_fastapi_backend.yml
+++ b/.github/workflows/deploy_fastapi_backend.yml
@@ -68,7 +68,7 @@ jobs:
 
       - name: Build Docker Image
         run: |
-          docker build -t fastapi-lambda-image:${{ github.sha }} -f backend/docker/lambda.Dockerfile .
+          docker build --platform linux/arm64 -t fastapi-lambda-image:${{ github.sha }} -f backend/docker/lambda.Dockerfile .
 
       - name: Login to ECR
         run: |
diff --git a/serverless.yml b/serverless.yml
index 89eb666a..163731cf 100644
--- a/serverless.yml
+++ b/serverless.yml
@@ -3,7 +3,7 @@ service: fastapi-lambda
 provider:
   name: aws
   region: eu-west-2
-  architecture: x86_64
+  architecture: arm64
   environment:
     API_KEY: ${env:API_KEY}
     ENVIRONMENT: ${env:ENVIRONMENT}