diff --git a/codegen/customizations.yml b/codegen/customizations.yml
index 8b5af6d..852d98d 100644
--- a/codegen/customizations.yml
+++ b/codegen/customizations.yml
@@ -466,6 +466,15 @@ customizations:
           omitEmpty: true
         PortGroupID:
           omitEmpty: true
+        Date:
+          fieldType: "string"
+          customUnmarshalType: ""
+        DateStart:
+          fieldType: "string"
+          customUnmarshalType: ""
+        DateEnd:
+          fieldType: "string"
+          customUnmarshalType: ""
     Network:
       fields:
         InternetAccessEnabled:
diff --git a/unifi/firewall_zone_policy.generated.go b/unifi/firewall_zone_policy.generated.go
index 4e57968..6bd1ae3 100644
--- a/unifi/firewall_zone_policy.generated.go
+++ b/unifi/firewall_zone_policy.generated.go
@@ -101,9 +101,9 @@ func (dst *FirewallZonePolicyDestination) UnmarshalJSON(b []byte) error {
 }
 
 type FirewallZonePolicySchedule struct {
-	Date           int      `json:"date,omitempty"`                                                                             // ^$|^(20[0-9]{2})-(0[1-9]|1[0-2])-(0[1-9]|[12][0-9]|3[01])$
-	DateEnd        int      `json:"date_end,omitempty"`                                                                         // ^$|^(20[0-9]{2})-(0[1-9]|1[0-2])-(0[1-9]|[12][0-9]|3[01])$
-	DateStart      int      `json:"date_start,omitempty"`                                                                       // ^$|^(20[0-9]{2})-(0[1-9]|1[0-2])-(0[1-9]|[12][0-9]|3[01])$
+	Date           string   `json:"date,omitempty"`                                                                             // ^$|^(20[0-9]{2})-(0[1-9]|1[0-2])-(0[1-9]|[12][0-9]|3[01])$
+	DateEnd        string   `json:"date_end,omitempty"`                                                                         // ^$|^(20[0-9]{2})-(0[1-9]|1[0-2])-(0[1-9]|[12][0-9]|3[01])$
+	DateStart      string   `json:"date_start,omitempty"`                                                                       // ^$|^(20[0-9]{2})-(0[1-9]|1[0-2])-(0[1-9]|[12][0-9]|3[01])$
 	Mode           string   `json:"mode,omitempty" validate:"omitempty,oneof=ALWAYS EVERY_DAY EVERY_WEEK ONE_TIME_ONLY CUSTOM"` // ALWAYS|EVERY_DAY|EVERY_WEEK|ONE_TIME_ONLY|CUSTOM
 	RepeatOnDays   []string `json:"repeat_on_days,omitempty" validate:"omitempty,oneof=mon tue wed thu fri sat sun"`            // mon|tue|wed|thu|fri|sat|sun
 	TimeAllDay     bool     `json:"time_all_day"`
@@ -114,10 +114,6 @@ type FirewallZonePolicySchedule struct {
 func (dst *FirewallZonePolicySchedule) UnmarshalJSON(b []byte) error {
 	type Alias FirewallZonePolicySchedule
 	aux := &struct {
-		Date      emptyStringInt `json:"date"`
-		DateEnd   emptyStringInt `json:"date_end"`
-		DateStart emptyStringInt `json:"date_start"`
-
 		*Alias
 	}{
 		Alias: (*Alias)(dst),
@@ -127,9 +123,6 @@ func (dst *FirewallZonePolicySchedule) UnmarshalJSON(b []byte) error {
 	if err != nil {
 		return fmt.Errorf("unable to unmarshal alias: %w", err)
 	}
-	dst.Date = int(aux.Date)
-	dst.DateEnd = int(aux.DateEnd)
-	dst.DateStart = int(aux.DateStart)
 
 	return nil
 }