diff --git a/src/Flee/Flee.csproj b/src/Flee/Flee.csproj
index 79ef155..f9fe596 100644
--- a/src/Flee/Flee.csproj
+++ b/src/Flee/Flee.csproj
@@ -8,7 +8,7 @@
         <Authors>Flee Contributors</Authors>
         <Company>Flee</Company>
         <Product>Flee</Product>
-        <TargetFrameworks>net6.0;net5.0;netstandard2.1;netstandard2.0</TargetFrameworks>
+        <TargetFrameworks>net8.0;net7.0;net6.0;net5.0;netstandard2.1;netstandard2.0</TargetFrameworks>
         <ImplicitUsings>enable</ImplicitUsings>
         <Nullable>enable</Nullable>
         <LangVersion>latest</LangVersion>
diff --git a/src/Flee/InternalTypes/FleeILGenerator.cs b/src/Flee/InternalTypes/FleeILGenerator.cs
index 1f24002..b9dc007 100644
--- a/src/Flee/InternalTypes/FleeILGenerator.cs
+++ b/src/Flee/InternalTypes/FleeILGenerator.cs
@@ -264,6 +264,6 @@ public void ValidateLength()
 
         public int LabelCount => _myLabelCount;
 
-        private int ILGeneratorLength => Utility.GetILGeneratorLength(_myIlGenerator);
+        private int ILGeneratorLength => _myIlGenerator.ILOffset;
     }
 }
diff --git a/src/Flee/InternalTypes/Utility.cs b/src/Flee/InternalTypes/Utility.cs
index 2063bcd..5106b9d 100644
--- a/src/Flee/InternalTypes/Utility.cs
+++ b/src/Flee/InternalTypes/Utility.cs
@@ -318,12 +318,6 @@ public static MethodInfo GetOverloadedOperator(string name, Type sourceType, Bin
             return null;
         }
 
-        public static int GetILGeneratorLength(ILGenerator ilg)
-        {
-            System.Reflection.FieldInfo fi = typeof(ILGenerator).GetField("m_length", BindingFlags.Instance | BindingFlags.NonPublic);
-            return (int)fi.GetValue(ilg);
-        }
-
         public static bool IsLongBranch(int startPosition, int endPosition)
         {
             return (endPosition - startPosition) > sbyte.MaxValue;
diff --git a/test/Flee.Test/Flee.Test.csproj b/test/Flee.Test/Flee.Test.csproj
index dd918a2..fad3676 100644
--- a/test/Flee.Test/Flee.Test.csproj
+++ b/test/Flee.Test/Flee.Test.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
     <PropertyGroup>
-        <TargetFramework>net6.0</TargetFramework>
+        <TargetFramework>net8.0</TargetFramework>
         <Nullable>enable</Nullable>
 
         <IsPackable>false</IsPackable>