diff --git a/exercises/isogram/IsogramTest.cs b/exercises/isogram/IsogramTest.cs
index d4d15aaeec..ce994a2650 100644
--- a/exercises/isogram/IsogramTest.cs
+++ b/exercises/isogram/IsogramTest.cs
@@ -1,4 +1,4 @@
-// This file was auto-generated based on version 1.3.0 of the canonical data.
+// This file was auto-generated based on version 1.4.0 of the canonical data.
 
 using Xunit;
 
@@ -22,6 +22,12 @@ public void Word_with_one_duplicated_character()
         Assert.False(Isogram.IsIsogram("eleven"));
     }
 
+    [Fact(Skip = "Remove to run test")]
+    public void Word_with_one_duplicated_character_from_the_end_of_the_alphabet()
+    {
+        Assert.False(Isogram.IsIsogram("zzyzx"));
+    }
+
     [Fact(Skip = "Remove to run test")]
     public void Longest_reported_english_isogram()
     {
diff --git a/exercises/series/SeriesTest.cs b/exercises/series/SeriesTest.cs
index f901cf0c91..7d36d6d5d2 100644
--- a/exercises/series/SeriesTest.cs
+++ b/exercises/series/SeriesTest.cs
@@ -43,17 +43,7 @@ public void Slices_can_include_duplicates()
     [Fact(Skip = "Remove to run test")]
     public void Slices_of_a_long_series()
     {
-        var expected = new[]
-        {
-            "91849",
-            "18493",
-            "84939",
-            "49390",
-            "93904",
-            "39042",
-            "90424",
-            "04243"
-        };
+        var expected = new[] { "91849", "18493", "84939", "49390", "93904", "39042", "90424", "04243" };
         Assert.Equal(expected, Series.Slices("918493904243", 5));
     }