diff --git a/src/Humanizer.Tests/DateHumanizeDefaultStrategyTests.cs b/src/Humanizer.Tests/DateHumanizeDefaultStrategyTests.cs
index b9853ce28..a7152894e 100644
--- a/src/Humanizer.Tests/DateHumanizeDefaultStrategyTests.cs
+++ b/src/Humanizer.Tests/DateHumanizeDefaultStrategyTests.cs
@@ -94,7 +94,7 @@ public void HoursFromNowNotTomorrow(int hours, string expected)
         [Theory]
         [InlineData(1, "yesterday")]
         [InlineData(10, "10 days ago")]
-        [InlineData(28, "28 days ago")]
+        [InlineData(27, "27 days ago")]
         [InlineData(32, "one month ago")]
         public void DaysAgo(int days, string expected)
         {
@@ -104,7 +104,7 @@ public void DaysAgo(int days, string expected)
         [Theory]
         [InlineData(1, "tomorrow")]
         [InlineData(10, "10 days from now")]
-        [InlineData(28, "28 days from now")]
+        [InlineData(27, "27 days from now")]
         [InlineData(32, "one month from now")]
         public void DaysFromNow(int days, string expected)
         {
diff --git a/src/Humanizer.Tests/DehumanizeToEnumTests.cs b/src/Humanizer.Tests/DehumanizeToEnumTests.cs
index c6d1326cf..34cc6e87c 100644
--- a/src/Humanizer.Tests/DehumanizeToEnumTests.cs
+++ b/src/Humanizer.Tests/DehumanizeToEnumTests.cs
@@ -86,7 +86,7 @@ public void HonorsLocalizedDisplayAttribute()
             Assert.Equal(EnumUnderTest.MemberWithLocalizedDisplayAttribute, EnumTestsResources.MemberWithLocalizedDisplayAttribute.DehumanizeTo(typeof(EnumUnderTest)));
         }
 
-        struct DummyStructWithEnumInterfaces : IComparable, IFormattable, IConvertible
+        struct DummyStructWithEnumInterfaces : IComparable, IFormattable
         {
             public int CompareTo(object obj)
             {
diff --git a/src/Humanizer/EnumDehumanizeExtensions.cs b/src/Humanizer/EnumDehumanizeExtensions.cs
index c6f1a86b2..157b30141 100644
--- a/src/Humanizer/EnumDehumanizeExtensions.cs
+++ b/src/Humanizer/EnumDehumanizeExtensions.cs
@@ -17,7 +17,7 @@ public static class EnumDehumanizeExtensions
         /// <exception cref="NoMatchFoundException">Couldn't find any enum member that matches the string</exception>
         /// <returns></returns>
         public static TTargetEnum DehumanizeTo<TTargetEnum>(this string input)
-            where TTargetEnum : struct, IComparable, IFormattable, IConvertible
+            where TTargetEnum : struct, IComparable, IFormattable
         {
             return (TTargetEnum)DehumanizeToPrivate(input, typeof(TTargetEnum), OnNoMatch.ThrowsException);
         }