diff --git a/pkg/model/awsmodel/autoscalinggroup.go b/pkg/model/awsmodel/autoscalinggroup.go
index 41dada1db5..6be53ada1a 100644
--- a/pkg/model/awsmodel/autoscalinggroup.go
+++ b/pkg/model/awsmodel/autoscalinggroup.go
@@ -314,21 +314,21 @@ func (b *AutoscalingGroupModelBuilder) buildAutoScalingGroupTask(c *fi.ModelBuil
 		},
 	}
 
-	minSize := int32(1)
-	maxSize := int32(1)
+	minSize := fi.Int64(1)
+	maxSize := fi.Int64(1)
 	if ig.Spec.MinSize != nil {
-		minSize = fi.Int32Value(ig.Spec.MinSize)
+		minSize = fi.Int64(int64(*ig.Spec.MinSize))
 	} else if ig.Spec.Role == kops.InstanceGroupRoleNode {
-		minSize = 2
+		minSize = fi.Int64(2)
 	}
 	if ig.Spec.MaxSize != nil {
-		maxSize = *ig.Spec.MaxSize
+		maxSize = fi.Int64(int64(*ig.Spec.MaxSize))
 	} else if ig.Spec.Role == kops.InstanceGroupRoleNode {
-		maxSize = 2
+		maxSize = fi.Int64(2)
 	}
 
-	t.MinSize = fi.Int64(int64(minSize))
-	t.MaxSize = fi.Int64(int64(maxSize))
+	t.MinSize = minSize
+	t.MaxSize = maxSize
 
 	subnets, err := b.GatherSubnets(ig)
 	if err != nil {
diff --git a/upup/pkg/fi/cloudup/awstasks/autoscalinggroup.go b/upup/pkg/fi/cloudup/awstasks/autoscalinggroup.go
index 997f0d860b..effd3e30af 100644
--- a/upup/pkg/fi/cloudup/awstasks/autoscalinggroup.go
+++ b/upup/pkg/fi/cloudup/awstasks/autoscalinggroup.go
@@ -862,8 +862,8 @@ type cloudformationAutoscalingGroup struct {
 	Name                    *string                                               `json:"AutoScalingGroupName,omitempty"`
 	LaunchConfigurationName *cloudformation.Literal                               `json:"LaunchConfigurationName,omitempty"`
 	LaunchTemplate          *cloudformationAutoscalingLaunchTemplateSpecification `json:"LaunchTemplate,omitempty"`
-	MaxSize                 *int64                                                `json:"MaxSize,omitempty"`
-	MinSize                 *int64                                                `json:"MinSize,omitempty"`
+	MaxSize                 *string                                               `json:"MaxSize,omitempty"`
+	MinSize                 *string                                               `json:"MinSize,omitempty"`
 	VPCZoneIdentifier       []*cloudformation.Literal                             `json:"VPCZoneIdentifier,omitempty"`
 	Tags                    []*cloudformationASGTag                               `json:"Tags,omitempty"`
 	MetricsCollection       []*cloudformationASGMetricsCollection                 `json:"MetricsCollection,omitempty"`
@@ -876,8 +876,8 @@ type cloudformationAutoscalingGroup struct {
 func (_ *AutoscalingGroup) RenderCloudformation(t *cloudformation.CloudformationTarget, a, e, changes *AutoscalingGroup) error {
 	cf := &cloudformationAutoscalingGroup{
 		Name:    e.Name,
-		MinSize: e.MinSize,
-		MaxSize: e.MaxSize,
+		MinSize: fi.ToString(e.MinSize),
+		MaxSize: fi.ToString(e.MaxSize),
 		MetricsCollection: []*cloudformationASGMetricsCollection{
 			{
 				Granularity: e.Granularity,
diff --git a/upup/pkg/fi/cloudup/awstasks/autoscalinggroup_test.go b/upup/pkg/fi/cloudup/awstasks/autoscalinggroup_test.go
index 4b1212fd0d..b304067a9e 100644
--- a/upup/pkg/fi/cloudup/awstasks/autoscalinggroup_test.go
+++ b/upup/pkg/fi/cloudup/awstasks/autoscalinggroup_test.go
@@ -349,8 +349,8 @@ func TestAutoscalingGroupCloudformationRender(t *testing.T) {
       "Type": "AWS::AutoScaling::AutoScalingGroup",
       "Properties": {
         "AutoScalingGroupName": "test1",
-        "MaxSize": 10,
-        "MinSize": 5,
+        "MaxSize": "10",
+        "MinSize": "5",
         "VPCZoneIdentifier": [
           {
             "Ref": "AWSEC2Subnettestsg"
diff --git a/upup/pkg/fi/cloudup/awstasks/load_balancer.go b/upup/pkg/fi/cloudup/awstasks/load_balancer.go
index f6d6942cb8..f317c56502 100644
--- a/upup/pkg/fi/cloudup/awstasks/load_balancer.go
+++ b/upup/pkg/fi/cloudup/awstasks/load_balancer.go
@@ -805,18 +805,18 @@ type cloudformationLoadBalancer struct {
 }
 
 type cloudformationLoadBalancerListener struct {
-	InstancePort         int    `json:"InstancePort"`
+	InstancePort         string `json:"InstancePort"`
 	InstanceProtocol     string `json:"InstanceProtocol"`
-	LoadBalancerPort     int64  `json:"LoadBalancerPort"`
+	LoadBalancerPort     string `json:"LoadBalancerPort"`
 	LoadBalancerProtocol string `json:"Protocol"`
 }
 
 type cloudformationLoadBalancerHealthCheck struct {
 	Target             *string `json:"Target"`
-	HealthyThreshold   *int64  `json:"HealthyThreshold"`
-	UnhealthyThreshold *int64  `json:"UnhealthyThreshold"`
-	Interval           *int64  `json:"Interval"`
-	Timeout            *int64  `json:"Timeout"`
+	HealthyThreshold   *string `json:"HealthyThreshold"`
+	UnhealthyThreshold *string `json:"UnhealthyThreshold"`
+	Interval           *string `json:"Interval"`
+	Timeout            *string `json:"Timeout"`
 }
 
 type cloudformationConnectionDrainingPolicy struct {
@@ -853,15 +853,11 @@ func (_ *LoadBalancer) RenderCloudformation(t *cloudformation.CloudformationTarg
 	}
 
 	for loadBalancerPort, listener := range e.Listeners {
-		loadBalancerPortInt, err := strconv.ParseInt(loadBalancerPort, 10, 64)
-		if err != nil {
-			return fmt.Errorf("error parsing load balancer listener port: %q", loadBalancerPort)
-		}
 
 		tf.Listener = append(tf.Listener, &cloudformationLoadBalancerListener{
 			InstanceProtocol:     "TCP",
-			InstancePort:         listener.InstancePort,
-			LoadBalancerPort:     loadBalancerPortInt,
+			InstancePort:         strconv.Itoa(listener.InstancePort),
+			LoadBalancerPort:     loadBalancerPort,
 			LoadBalancerProtocol: "TCP",
 		})
 	}
@@ -869,10 +865,10 @@ func (_ *LoadBalancer) RenderCloudformation(t *cloudformation.CloudformationTarg
 	if e.HealthCheck != nil {
 		tf.HealthCheck = &cloudformationLoadBalancerHealthCheck{
 			Target:             e.HealthCheck.Target,
-			HealthyThreshold:   e.HealthCheck.HealthyThreshold,
-			UnhealthyThreshold: e.HealthCheck.UnhealthyThreshold,
-			Interval:           e.HealthCheck.Interval,
-			Timeout:            e.HealthCheck.Timeout,
+			HealthyThreshold:   fi.ToString(e.HealthCheck.HealthyThreshold),
+			UnhealthyThreshold: fi.ToString(e.HealthCheck.UnhealthyThreshold),
+			Interval:           fi.ToString(e.HealthCheck.Interval),
+			Timeout:            fi.ToString(e.HealthCheck.Timeout),
 		}
 	}
 
diff --git a/upup/pkg/fi/values.go b/upup/pkg/fi/values.go
index b7cbac9033..d8d9318558 100644
--- a/upup/pkg/fi/values.go
+++ b/upup/pkg/fi/values.go
@@ -20,6 +20,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"reflect"
+	"strconv"
 )
 
 func StringValue(s *string) string {
@@ -202,3 +203,22 @@ func DebugAsJsonStringIndent(v interface{}) string {
 	}
 	return string(data)
 }
+
+func ToInt64(s *string) *int64 {
+	if s == nil {
+		return nil
+	}
+	v, err := strconv.ParseInt(*s, 10, 64)
+	if err != nil {
+		return nil
+	}
+	return &v
+}
+
+func ToString(v *int64) *string {
+	if v == nil {
+		return nil
+	}
+	s := strconv.FormatInt(*v, 10)
+	return &s
+}