diff --git a/cmd/nginx-ingress/main.go b/cmd/nginx-ingress/main.go
index 46d85697cd..4c2ed7c032 100644
--- a/cmd/nginx-ingress/main.go
+++ b/cmd/nginx-ingress/main.go
@@ -110,7 +110,7 @@ var (
 	nginxStatusAllowCIDRs = flag.String("nginx-status-allow-cidrs", "127.0.0.1", `Whitelist IPv4 IP/CIDR blocks to allow access to NGINX stub_status or the NGINX Plus API. Separate multiple IP/CIDR by commas.`)
 
 	nginxStatusPort = flag.Int("nginx-status-port", 8080,
-		"Set the port where the NGINX stub_status or the NGINX Plus API is exposed. [1023 - 65535]")
+		"Set the port where the NGINX stub_status or the NGINX Plus API is exposed. [1024 - 65535]")
 
 	nginxStatus = flag.Bool("nginx-status", true,
 		"Enable the NGINX stub_status, or the NGINX Plus API.")
@@ -127,7 +127,7 @@ var (
 		"Enable exposing NGINX or NGINX Plus metrics in the Prometheus format")
 
 	prometheusMetricsListenPort = flag.Int("prometheus-metrics-listen-port", 9113,
-		"Set the port where the Prometheus metrics are exposed. [1023 - 65535]")
+		"Set the port where the Prometheus metrics are exposed. [1024 - 65535]")
 
 	enableCustomResources = flag.Bool("enable-custom-resources", true,
 		"Enable custom resources")
@@ -561,8 +561,8 @@ func validateResourceName(lock string) error {
 
 // validatePort makes sure a given port is inside the valid port range for its usage
 func validatePort(port int) error {
-	if port < 1023 || port > 65535 {
-		return fmt.Errorf("port outside of valid port range [1023 - 65535]: %v", port)
+	if port < 1024 || port > 65535 {
+		return fmt.Errorf("port outside of valid port range [1024 - 65535]: %v", port)
 	}
 	return nil
 }
diff --git a/cmd/nginx-ingress/main_test.go b/cmd/nginx-ingress/main_test.go
index a93abcad87..7bc9ddae40 100644
--- a/cmd/nginx-ingress/main_test.go
+++ b/cmd/nginx-ingress/main_test.go
@@ -7,7 +7,7 @@ import (
 )
 
 func TestValidatePort(t *testing.T) {
-	badPorts := []int{80, 443, 1, 1022, 65536}
+	badPorts := []int{80, 443, 1, 1023, 65536}
 	for _, badPort := range badPorts {
 		err := validatePort(badPort)
 		if err == nil {
@@ -15,7 +15,7 @@ func TestValidatePort(t *testing.T) {
 		}
 	}
 
-	goodPorts := []int{8080, 8081, 8082, 1023, 65535}
+	goodPorts := []int{8080, 8081, 8082, 1024, 65535}
 	for _, goodPort := range goodPorts {
 		err := validatePort(goodPort)
 		if err != nil {
diff --git a/docs-web/configuration/global-configuration/command-line-arguments.md b/docs-web/configuration/global-configuration/command-line-arguments.md
index 0649adfdf2..6014627762 100644
--- a/docs-web/configuration/global-configuration/command-line-arguments.md
+++ b/docs-web/configuration/global-configuration/command-line-arguments.md
@@ -115,7 +115,7 @@ Below we describe the available command-line arguments:
 
 	Set the port where the NGINX stub_status or the NGINX Plus API is exposed.
 
-	Format: ``[1023 - 65535]`` (default 8080)
+	Format: ``[1024 - 65535]`` (default 8080)
 
 .. option:: -proxy <string>
 
@@ -169,7 +169,7 @@ Below we describe the available command-line arguments:
 
 	Sets the port where the Prometheus metrics are exposed.
 
-	Format: ``[1023 - 65535]`` (default 9113)
+	Format: ``[1024 - 65535]`` (default 9113)
 
 .. option:: -spire-agent-address <string>