diff --git a/fargate/service-cloudmap.yaml b/fargate/service-cloudmap.yaml
index 2c6f93990..c4868c1e5 100644
--- a/fargate/service-cloudmap.yaml
+++ b/fargate/service-cloudmap.yaml
@@ -545,6 +545,7 @@ Resources:
           - !If [HasClientSecurityGroup2, {'Fn::ImportValue': !Sub '${ParentClientStack2}-ClientSecurityGroup'}, !Ref 'AWS::NoValue']
           - !If [HasClientSecurityGroup3, {'Fn::ImportValue': !Sub '${ParentClientStack3}-ClientSecurityGroup'}, !Ref 'AWS::NoValue']
           Subnets: !Split [',', {'Fn::ImportValue': !Sub '${ParentVPCStack}-Subnets${SubnetsReach}'}]
+      PlatformVersion: '1.4.0'
       TaskDefinition: !Ref TaskDefinition
   CPUUtilizationTooHighAlarm:
     Condition: HasAlertTopic
diff --git a/fargate/service-cluster-alb.yaml b/fargate/service-cluster-alb.yaml
index 32e88507f..90ecfd7ef 100644
--- a/fargate/service-cluster-alb.yaml
+++ b/fargate/service-cluster-alb.yaml
@@ -677,6 +677,7 @@ Resources:
           - !If [HasClientSecurityGroup2, {'Fn::ImportValue': !Sub '${ParentClientStack2}-ClientSecurityGroup'}, !Ref 'AWS::NoValue']
           - !If [HasClientSecurityGroup3, {'Fn::ImportValue': !Sub '${ParentClientStack3}-ClientSecurityGroup'}, !Ref 'AWS::NoValue']
           Subnets: !Split [',', {'Fn::ImportValue': !Sub '${ParentVPCStack}-Subnets${SubnetsReach}'}]
+      PlatformVersion: '1.4.0'
       TaskDefinition: !Ref TaskDefinition
   CPUUtilizationTooHighAlarm:
     Condition: HasAlertTopic
diff --git a/fargate/service-dedicated-alb.yaml b/fargate/service-dedicated-alb.yaml
index 6f1ad4ca8..e56c014ef 100644
--- a/fargate/service-dedicated-alb.yaml
+++ b/fargate/service-dedicated-alb.yaml
@@ -813,6 +813,7 @@ Resources:
           - !If [HasClientSecurityGroup2, {'Fn::ImportValue': !Sub '${ParentClientStack2}-ClientSecurityGroup'}, !Ref 'AWS::NoValue']
           - !If [HasClientSecurityGroup3, {'Fn::ImportValue': !Sub '${ParentClientStack3}-ClientSecurityGroup'}, !Ref 'AWS::NoValue']
           Subnets: !Split [',', {'Fn::ImportValue': !Sub '${ParentVPCStack}-Subnets${SubnetsReach}'}]
+      PlatformVersion: '1.4.0'
       TaskDefinition: !Ref TaskDefinition
   CPUUtilizationTooHighAlarm:
     Condition: HasAlertTopic