diff --git a/cdk/lib/__snapshots__/registration.test.ts.snap b/cdk/lib/__snapshots__/registration.test.ts.snap
index eb3227c3b..bfc2c1ebb 100644
--- a/cdk/lib/__snapshots__/registration.test.ts.snap
+++ b/cdk/lib/__snapshots__/registration.test.ts.snap
@@ -19,7 +19,7 @@ Object {
         "CPUAlarmPeriodUpper": 1200,
         "CPUAlarmThresholdLower": 20,
         "CPUAlarmThresholdUpper": 50,
-        "InstanceType": "t4g.micro",
+        "InstanceType": "t4g.small",
         "NotificationAlarmPeriod": 1200,
       },
       "PROD": Object {
@@ -27,7 +27,7 @@ Object {
         "CPUAlarmPeriodUpper": 60,
         "CPUAlarmThresholdLower": 20,
         "CPUAlarmThresholdUpper": 50,
-        "InstanceType": "t4g.micro",
+        "InstanceType": "t4g.small",
         "NotificationAlarmPeriod": 1200,
       },
     },
@@ -816,7 +816,7 @@ Object {
         "CPUAlarmPeriodUpper": 1200,
         "CPUAlarmThresholdLower": 20,
         "CPUAlarmThresholdUpper": 50,
-        "InstanceType": "t4g.micro",
+        "InstanceType": "t4g.small",
         "NotificationAlarmPeriod": 1200,
       },
       "PROD": Object {
@@ -824,7 +824,7 @@ Object {
         "CPUAlarmPeriodUpper": 60,
         "CPUAlarmThresholdLower": 20,
         "CPUAlarmThresholdUpper": 50,
-        "InstanceType": "t4g.micro",
+        "InstanceType": "t4g.small",
         "NotificationAlarmPeriod": 1200,
       },
     },
diff --git a/registration/conf/registration.yaml b/registration/conf/registration.yaml
index 8b7c3b909..f94026494 100644
--- a/registration/conf/registration.yaml
+++ b/registration/conf/registration.yaml
@@ -16,14 +16,14 @@ Mappings:
       CPUAlarmThresholdLower: 20
       CPUAlarmThresholdUpper: 50
       NotificationAlarmPeriod: 1200
-      InstanceType: "t4g.micro"
+      InstanceType: "t4g.small"
     PROD:
       CPUAlarmPeriodLower: 300
       CPUAlarmPeriodUpper: 60
       CPUAlarmThresholdLower: 20
       CPUAlarmThresholdUpper: 50
       NotificationAlarmPeriod: 1200
-      InstanceType: "t4g.micro"
+      InstanceType: "t4g.small"
 Outputs:
   LoadBalancerUrl:
     Value: