diff --git a/github/github-accessors.go b/github/github-accessors.go
index a0e7a74366e..78a184e6c80 100644
--- a/github/github-accessors.go
+++ b/github/github-accessors.go
@@ -4838,6 +4838,14 @@ func (c *CreateUpdateEnvironment) GetDeploymentBranchPolicy() *BranchPolicy {
 	return c.DeploymentBranchPolicy
 }
 
+// GetPreventSelfReview returns the PreventSelfReview field if it's non-nil, zero value otherwise.
+func (c *CreateUpdateEnvironment) GetPreventSelfReview() bool {
+	if c == nil || c.PreventSelfReview == nil {
+		return false
+	}
+	return *c.PreventSelfReview
+}
+
 // GetWaitTimer returns the WaitTimer field if it's non-nil, zero value otherwise.
 func (c *CreateUpdateEnvironment) GetWaitTimer() int {
 	if c == nil || c.WaitTimer == nil {
@@ -15534,6 +15542,14 @@ func (p *ProtectionRule) GetNodeID() string {
 	return *p.NodeID
 }
 
+// GetPreventSelfReview returns the PreventSelfReview field if it's non-nil, zero value otherwise.
+func (p *ProtectionRule) GetPreventSelfReview() bool {
+	if p == nil || p.PreventSelfReview == nil {
+		return false
+	}
+	return *p.PreventSelfReview
+}
+
 // GetType returns the Type field if it's non-nil, zero value otherwise.
 func (p *ProtectionRule) GetType() string {
 	if p == nil || p.Type == nil {
diff --git a/github/github-accessors_test.go b/github/github-accessors_test.go
index 9b3c36fd9bc..54c89eb9876 100644
--- a/github/github-accessors_test.go
+++ b/github/github-accessors_test.go
@@ -5712,6 +5712,16 @@ func TestCreateUpdateEnvironment_GetDeploymentBranchPolicy(tt *testing.T) {
 	c.GetDeploymentBranchPolicy()
 }
 
+func TestCreateUpdateEnvironment_GetPreventSelfReview(tt *testing.T) {
+	var zeroValue bool
+	c := &CreateUpdateEnvironment{PreventSelfReview: &zeroValue}
+	c.GetPreventSelfReview()
+	c = &CreateUpdateEnvironment{}
+	c.GetPreventSelfReview()
+	c = nil
+	c.GetPreventSelfReview()
+}
+
 func TestCreateUpdateEnvironment_GetWaitTimer(tt *testing.T) {
 	var zeroValue int
 	c := &CreateUpdateEnvironment{WaitTimer: &zeroValue}
@@ -18047,6 +18057,16 @@ func TestProtectionRule_GetNodeID(tt *testing.T) {
 	p.GetNodeID()
 }
 
+func TestProtectionRule_GetPreventSelfReview(tt *testing.T) {
+	var zeroValue bool
+	p := &ProtectionRule{PreventSelfReview: &zeroValue}
+	p.GetPreventSelfReview()
+	p = &ProtectionRule{}
+	p.GetPreventSelfReview()
+	p = nil
+	p.GetPreventSelfReview()
+}
+
 func TestProtectionRule_GetType(tt *testing.T) {
 	var zeroValue string
 	p := &ProtectionRule{Type: &zeroValue}
diff --git a/github/repos_environments.go b/github/repos_environments.go
index 2399a42c746..e22ca5cd1be 100644
--- a/github/repos_environments.go
+++ b/github/repos_environments.go
@@ -52,11 +52,12 @@ type EnvResponse struct {
 
 // ProtectionRule represents a single protection rule applied to the environment.
 type ProtectionRule struct {
-	ID        *int64              `json:"id,omitempty"`
-	NodeID    *string             `json:"node_id,omitempty"`
-	Type      *string             `json:"type,omitempty"`
-	WaitTimer *int                `json:"wait_timer,omitempty"`
-	Reviewers []*RequiredReviewer `json:"reviewers,omitempty"`
+	ID                *int64              `json:"id,omitempty"`
+	NodeID            *string             `json:"node_id,omitempty"`
+	PreventSelfReview *bool               `json:"prevent_self_review,omitempty"`
+	Type              *string             `json:"type,omitempty"`
+	WaitTimer         *int                `json:"wait_timer,omitempty"`
+	Reviewers         []*RequiredReviewer `json:"reviewers,omitempty"`
 }
 
 // RequiredReviewer represents a required reviewer.
@@ -173,6 +174,7 @@ type CreateUpdateEnvironment struct {
 	Reviewers              []*EnvReviewers `json:"reviewers"`
 	CanAdminsBypass        *bool           `json:"can_admins_bypass"`
 	DeploymentBranchPolicy *BranchPolicy   `json:"deployment_branch_policy"`
+	PreventSelfReview      *bool           `json:"prevent_self_review,omitempty"`
 }
 
 // createUpdateEnvironmentNoEnterprise represents the fields accepted for Pro/Teams private repos.