diff --git a/github/code-scanning.go b/github/code-scanning.go
index e4a6abeba3..09c0364787 100644
--- a/github/code-scanning.go
+++ b/github/code-scanning.go
@@ -122,6 +122,12 @@ type AlertListOptions struct {
 	// Return code scanning alerts for a specific branch reference. The ref must be formatted as heads/<branch name>.
 	Ref string `url:"ref,omitempty"`
 
+	// If specified, only code scanning alerts with this severity will be returned. Possible values are: critical, high, medium, low, warning, note, error.
+	Severity string `url:"severity,omitempty"`
+
+	// The name of a code scanning tool. Only results by this tool will be listed.
+	ToolName string `url:"tool_name,omitempty"`
+
 	ListCursorOptions
 
 	// Add ListOptions so offset pagination with integer type "page" query parameter is accepted
diff --git a/github/code-scanning_test.go b/github/code-scanning_test.go
index 29c0b617b8..20d4817d3f 100644
--- a/github/code-scanning_test.go
+++ b/github/code-scanning_test.go
@@ -95,7 +95,7 @@ func TestCodeScanningService_ListAlertsForOrg(t *testing.T) {
 
 	mux.HandleFunc("/orgs/o/code-scanning/alerts", func(w http.ResponseWriter, r *http.Request) {
 		testMethod(t, r, "GET")
-		testFormValues(t, r, values{"state": "open", "ref": "heads/master"})
+		testFormValues(t, r, values{"state": "open", "ref": "heads/master", "severity": "warning", "tool_name": "CodeQL"})
 		fmt.Fprint(w, `[{
 				"repository": {
 					"id": 1,
@@ -187,7 +187,7 @@ func TestCodeScanningService_ListAlertsForOrg(t *testing.T) {
 				}]`)
 	})
 
-	opts := &AlertListOptions{State: "open", Ref: "heads/master"}
+	opts := &AlertListOptions{State: "open", Ref: "heads/master", Severity: "warning", ToolName: "CodeQL"}
 	ctx := context.Background()
 	alerts, _, err := client.CodeScanning.ListAlertsForOrg(ctx, "o", opts)
 	if err != nil {
@@ -299,7 +299,7 @@ func TestCodeScanningService_ListAlertsForOrgLisCursorOptions(t *testing.T) {
 
 	mux.HandleFunc("/orgs/o/code-scanning/alerts", func(w http.ResponseWriter, r *http.Request) {
 		testMethod(t, r, "GET")
-		testFormValues(t, r, values{"state": "open", "ref": "heads/master", "per_page": "1", "before": "deadbeefb", "after": "deadbeefa"})
+		testFormValues(t, r, values{"state": "open", "ref": "heads/master", "severity": "warning", "tool_name": "CodeQL", "per_page": "1", "before": "deadbeefb", "after": "deadbeefa"})
 		fmt.Fprint(w, `[{
 				"repository": {
 					"id": 1,
@@ -349,7 +349,7 @@ func TestCodeScanningService_ListAlertsForOrgLisCursorOptions(t *testing.T) {
 				}]`)
 	})
 
-	opts := &AlertListOptions{State: "open", Ref: "heads/master", ListCursorOptions: ListCursorOptions{PerPage: 1, Before: "deadbeefb", After: "deadbeefa"}}
+	opts := &AlertListOptions{State: "open", Ref: "heads/master", Severity: "warning", ToolName: "CodeQL", ListCursorOptions: ListCursorOptions{PerPage: 1, Before: "deadbeefb", After: "deadbeefa"}}
 	ctx := context.Background()
 	alerts, _, err := client.CodeScanning.ListAlertsForOrg(ctx, "o", opts)
 	if err != nil {
@@ -425,7 +425,7 @@ func TestCodeScanningService_ListAlertsForRepo(t *testing.T) {
 
 	mux.HandleFunc("/repos/o/r/code-scanning/alerts", func(w http.ResponseWriter, r *http.Request) {
 		testMethod(t, r, "GET")
-		testFormValues(t, r, values{"state": "open", "ref": "heads/master"})
+		testFormValues(t, r, values{"state": "open", "ref": "heads/master", "severity": "warning", "tool_name": "CodeQL"})
 		fmt.Fprint(w, `[{
 				"rule_id":"js/trivial-conditional",
 				"rule_severity":"warning",
@@ -512,7 +512,7 @@ func TestCodeScanningService_ListAlertsForRepo(t *testing.T) {
 				}]`)
 	})
 
-	opts := &AlertListOptions{State: "open", Ref: "heads/master"}
+	opts := &AlertListOptions{State: "open", Ref: "heads/master", Severity: "warning", ToolName: "CodeQL"}
 	ctx := context.Background()
 	alerts, _, err := client.CodeScanning.ListAlertsForRepo(ctx, "o", "r", opts)
 	if err != nil {