diff --git a/src/utilities/InputFormatValidator.cpp b/src/utilities/InputFormatValidator.cpp
index 3b18063..6a6076b 100644
--- a/src/utilities/InputFormatValidator.cpp
+++ b/src/utilities/InputFormatValidator.cpp
@@ -16,6 +16,6 @@ bool InputFormatValidator::ValidateIpAddressFormat(const QString &aIpAddress)
 
 bool InputFormatValidator::ValidatePortFormat(const QString& aPort)
 {
-    QRegularExpression regex("^([1-9]\\d{0,4}|0)$");
+    QRegularExpression regex("^(6553[0-5]|655[0-2][0-9]|65[0-4][0-9]{2}|6[0-4][0-9]{3}|[1-5][0-9]{4}|[1-9][0-9]{0,3}|0)$");
     return regex.match(aPort).hasMatch();
 }