diff --git a/ViaCEP.Tests/AddressTests.cs b/ViaCEP.Tests/AddressTests.cs
index 555c1e6..9410df9 100644
--- a/ViaCEP.Tests/AddressTests.cs
+++ b/ViaCEP.Tests/AddressTests.cs
@@ -1,5 +1,6 @@
 namespace ViaCEP.Tests
 {
+    using System;
     using System.Linq;
     using Xunit;
 
@@ -18,10 +19,11 @@ public void ValidateSearchByFullAddress()
             Assert.NotNull(result);
             var list = result.ToList();
             Assert.True(list.Any());
+            Assert.True(list.Any(r => r.ZipCode.Equals("01310-905", StringComparison.CurrentCultureIgnoreCase)));
+            Assert.True(list.Any(r => r.ZipCode.Equals("01310-923", StringComparison.CurrentCultureIgnoreCase)));
             var first = list.First();
             Assert.Equal("SP", first.StateInitials);
             Assert.Equal("São Paulo", first.City);
-            Assert.Equal("01310-905", first.ZipCode);
 
         }
     }