diff --git a/infrastructure/stack.py b/infrastructure/stack.py
index d068c14..197f07b 100644
--- a/infrastructure/stack.py
+++ b/infrastructure/stack.py
@@ -28,7 +28,7 @@ class IptvUpdaterStack(Stack):
 
         # Create VPC
         vpc = ec2.Vpc(self, "IptvUpdaterVPC",
-            max_azs=1,  # Use only one AZ for free tier
+            max_azs=2,  # Need at least 2 AZs for RDS subnet group
             nat_gateways=0,  # No NAT Gateway to stay in free tier
             subnet_configuration=[
                 ec2.SubnetConfiguration(