diff --git a/AIParkingApplication/PlateProcessor.cs b/AIParkingApplication/PlateProcessor.cs
index 750a78f..9279a9c 100644
--- a/AIParkingApplication/PlateProcessor.cs
+++ b/AIParkingApplication/PlateProcessor.cs
@@ -97,7 +97,7 @@ namespace AIParkingApplication
             return plateString;
         }
 
-        public bool IsPlateStringValid(string plateString, int minPlateStringLength = 4)
+        public bool IsPlateStringValid(string plateString, int minPlateStringLength = 5)
         {
             bool isValid = !string.IsNullOrEmpty(plateString) && plateString.Length > minPlateStringLength;
             return isValid;