diff --git a/api_v2024/api/openapi.yaml b/api_v2024/api/openapi.yaml
index 178f7eed2..1c621ed14 100644
--- a/api_v2024/api/openapi.yaml
+++ b/api_v2024/api/openapi.yaml
@@ -80348,8 +80348,12 @@ components:
           - ActivityTaskStarted
           - ActivityTaskCompleted
           - ActivityTaskFailed
+          - StartChildWorkflowExecutionInitiated
+          - ChildWorkflowExecutionStarted
+          - ChildWorkflowExecutionCompleted
+          - ChildWorkflowExecutionFailed
           example: WorkflowTaskScheduled
-          type: object
+          type: string
         timestamp:
           description: The date-time when the event occurred
           example: 2022-02-07T20:13:31.640618296Z
diff --git a/api_v2024/docs/WorkflowExecutionEvent.md b/api_v2024/docs/WorkflowExecutionEvent.md
index b451bf191..3771ee3df 100644
--- a/api_v2024/docs/WorkflowExecutionEvent.md
+++ b/api_v2024/docs/WorkflowExecutionEvent.md
@@ -4,7 +4,7 @@
 
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
-**Type** | Pointer to **map[string]interface{}** | The type of event | [optional] 
+**Type** | Pointer to **string** | The type of event | [optional] 
 **Timestamp** | Pointer to **time.Time** | The date-time when the event occurred | [optional] 
 **Attributes** | Pointer to **map[string]interface{}** | Additional attributes associated with the event | [optional] 
 
@@ -29,20 +29,20 @@ but it doesn't guarantee that properties required by API are set
 
 ### GetType
 
-`func (o *WorkflowExecutionEvent) GetType() map[string]interface{}`
+`func (o *WorkflowExecutionEvent) GetType() string`
 
 GetType returns the Type field if non-nil, zero value otherwise.
 
 ### GetTypeOk
 
-`func (o *WorkflowExecutionEvent) GetTypeOk() (*map[string]interface{}, bool)`
+`func (o *WorkflowExecutionEvent) GetTypeOk() (*string, bool)`
 
 GetTypeOk returns a tuple with the Type field if it's non-nil, zero value otherwise
 and a boolean to check if the value has been set.
 
 ### SetType
 
-`func (o *WorkflowExecutionEvent) SetType(v map[string]interface{})`
+`func (o *WorkflowExecutionEvent) SetType(v string)`
 
 SetType sets Type field to given value.
 
diff --git a/api_v2024/model_workflow_execution_event.go b/api_v2024/model_workflow_execution_event.go
index 732f26898..78bb9d928 100644
--- a/api_v2024/model_workflow_execution_event.go
+++ b/api_v2024/model_workflow_execution_event.go
@@ -21,7 +21,7 @@ var _ MappedNullable = &WorkflowExecutionEvent{}
 // WorkflowExecutionEvent struct for WorkflowExecutionEvent
 type WorkflowExecutionEvent struct {
 	// The type of event
-	Type map[string]interface{} `json:"type,omitempty"`
+	Type *string `json:"type,omitempty"`
 	// The date-time when the event occurred
 	Timestamp *time.Time `json:"timestamp,omitempty"`
 	// Additional attributes associated with the event
@@ -49,19 +49,19 @@ func NewWorkflowExecutionEventWithDefaults() *WorkflowExecutionEvent {
 }
 
 // GetType returns the Type field value if set, zero value otherwise.
-func (o *WorkflowExecutionEvent) GetType() map[string]interface{} {
+func (o *WorkflowExecutionEvent) GetType() string {
 	if o == nil || isNil(o.Type) {
-		var ret map[string]interface{}
+		var ret string
 		return ret
 	}
-	return o.Type
+	return *o.Type
 }
 
 // GetTypeOk returns a tuple with the Type field value if set, nil otherwise
 // and a boolean to check if the value has been set.
-func (o *WorkflowExecutionEvent) GetTypeOk() (map[string]interface{}, bool) {
+func (o *WorkflowExecutionEvent) GetTypeOk() (*string, bool) {
 	if o == nil || isNil(o.Type) {
-		return map[string]interface{}{}, false
+		return nil, false
 	}
 	return o.Type, true
 }
@@ -75,9 +75,9 @@ func (o *WorkflowExecutionEvent) HasType() bool {
 	return false
 }
 
-// SetType gets a reference to the given map[string]interface{} and assigns it to the Type field.
-func (o *WorkflowExecutionEvent) SetType(v map[string]interface{}) {
-	o.Type = v
+// SetType gets a reference to the given string and assigns it to the Type field.
+func (o *WorkflowExecutionEvent) SetType(v string) {
+	o.Type = &v
 }
 
 // GetTimestamp returns the Timestamp field value if set, zero value otherwise.
diff --git a/api_v3/api/openapi.yaml b/api_v3/api/openapi.yaml
index d278dd00e..9a4fd0219 100644
--- a/api_v3/api/openapi.yaml
+++ b/api_v3/api/openapi.yaml
@@ -54627,8 +54627,12 @@ components:
           - ActivityTaskStarted
           - ActivityTaskCompleted
           - ActivityTaskFailed
+          - StartChildWorkflowExecutionInitiated
+          - ChildWorkflowExecutionStarted
+          - ChildWorkflowExecutionCompleted
+          - ChildWorkflowExecutionFailed
           example: WorkflowTaskScheduled
-          type: object
+          type: string
         timestamp:
           description: The date-time when the event occurred
           example: 2022-02-07T20:13:31.640618296Z
diff --git a/api_v3/docs/WorkflowExecutionEvent.md b/api_v3/docs/WorkflowExecutionEvent.md
index b451bf191..3771ee3df 100644
--- a/api_v3/docs/WorkflowExecutionEvent.md
+++ b/api_v3/docs/WorkflowExecutionEvent.md
@@ -4,7 +4,7 @@
 
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
-**Type** | Pointer to **map[string]interface{}** | The type of event | [optional] 
+**Type** | Pointer to **string** | The type of event | [optional] 
 **Timestamp** | Pointer to **time.Time** | The date-time when the event occurred | [optional] 
 **Attributes** | Pointer to **map[string]interface{}** | Additional attributes associated with the event | [optional] 
 
@@ -29,20 +29,20 @@ but it doesn't guarantee that properties required by API are set
 
 ### GetType
 
-`func (o *WorkflowExecutionEvent) GetType() map[string]interface{}`
+`func (o *WorkflowExecutionEvent) GetType() string`
 
 GetType returns the Type field if non-nil, zero value otherwise.
 
 ### GetTypeOk
 
-`func (o *WorkflowExecutionEvent) GetTypeOk() (*map[string]interface{}, bool)`
+`func (o *WorkflowExecutionEvent) GetTypeOk() (*string, bool)`
 
 GetTypeOk returns a tuple with the Type field if it's non-nil, zero value otherwise
 and a boolean to check if the value has been set.
 
 ### SetType
 
-`func (o *WorkflowExecutionEvent) SetType(v map[string]interface{})`
+`func (o *WorkflowExecutionEvent) SetType(v string)`
 
 SetType sets Type field to given value.
 
diff --git a/api_v3/model_workflow_execution_event.go b/api_v3/model_workflow_execution_event.go
index 2e34736f0..1f890c2c6 100644
--- a/api_v3/model_workflow_execution_event.go
+++ b/api_v3/model_workflow_execution_event.go
@@ -21,7 +21,7 @@ var _ MappedNullable = &WorkflowExecutionEvent{}
 // WorkflowExecutionEvent struct for WorkflowExecutionEvent
 type WorkflowExecutionEvent struct {
 	// The type of event
-	Type map[string]interface{} `json:"type,omitempty"`
+	Type *string `json:"type,omitempty"`
 	// The date-time when the event occurred
 	Timestamp *time.Time `json:"timestamp,omitempty"`
 	// Additional attributes associated with the event
@@ -49,19 +49,19 @@ func NewWorkflowExecutionEventWithDefaults() *WorkflowExecutionEvent {
 }
 
 // GetType returns the Type field value if set, zero value otherwise.
-func (o *WorkflowExecutionEvent) GetType() map[string]interface{} {
+func (o *WorkflowExecutionEvent) GetType() string {
 	if o == nil || isNil(o.Type) {
-		var ret map[string]interface{}
+		var ret string
 		return ret
 	}
-	return o.Type
+	return *o.Type
 }
 
 // GetTypeOk returns a tuple with the Type field value if set, nil otherwise
 // and a boolean to check if the value has been set.
-func (o *WorkflowExecutionEvent) GetTypeOk() (map[string]interface{}, bool) {
+func (o *WorkflowExecutionEvent) GetTypeOk() (*string, bool) {
 	if o == nil || isNil(o.Type) {
-		return map[string]interface{}{}, false
+		return nil, false
 	}
 	return o.Type, true
 }
@@ -75,9 +75,9 @@ func (o *WorkflowExecutionEvent) HasType() bool {
 	return false
 }
 
-// SetType gets a reference to the given map[string]interface{} and assigns it to the Type field.
-func (o *WorkflowExecutionEvent) SetType(v map[string]interface{}) {
-	o.Type = v
+// SetType gets a reference to the given string and assigns it to the Type field.
+func (o *WorkflowExecutionEvent) SetType(v string) {
+	o.Type = &v
 }
 
 // GetTimestamp returns the Timestamp field value if set, zero value otherwise.