diff --git a/ControlCore.csproj b/ControlCore.csproj
index 9f3c622..537dba9 100644
--- a/ControlCore.csproj
+++ b/ControlCore.csproj
@@ -3,8 +3,7 @@
   <PropertyGroup>
     <GenerateAssemblyInfo>false</GenerateAssemblyInfo>
     <GenerateTargetFrameworkAttribute>false</GenerateTargetFrameworkAttribute> 
-    <TargetFramework>net9.0</TargetFramework>
-    <ImplicitUsings>enable</ImplicitUsings>
+    <TargetFramework>net5.0</TargetFramework>
     <Nullable>enable</Nullable>
   </PropertyGroup>
 
diff --git a/LinearAlgebra/Vector3.cs b/LinearAlgebra/Vector3.cs
index 4b629ac..0cc4d7b 100644
--- a/LinearAlgebra/Vector3.cs
+++ b/LinearAlgebra/Vector3.cs
@@ -1,5 +1,6 @@
-
 #if !UNITY_5_3_OR_NEWER
+using System;
+
 namespace Passer.LinearAlgebra {
     public class Vector3Of<T> {
         public T x;
@@ -17,9 +18,11 @@ namespace Passer.LinearAlgebra {
         // }
     }
 
-    public class Vector3Int(int x, int y, int z) : Vector3Of<int>(x, y, z) {
+    public class Vector3Int : Vector3Of<int> {
+        public Vector3Int(int x, int y, int z) : base(x, y, z) { }
     }
-    public class Vector3Float(float x, float y, float z) : Vector3Of<float>(x, y, z) {
+    public class Vector3Float : Vector3Of<float> {
+        public Vector3Float(float x, float y, float z) : base(x, y, z) { }
 
         public float magnitude {
             get => (float)Math.Sqrt(this.x * this.x + this.y * this.y + this.z * this.z);
diff --git a/test/test.csproj b/test/test.csproj
index b0f97b9..6fe6bad 100644
--- a/test/test.csproj
+++ b/test/test.csproj
@@ -1,9 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net9.0</TargetFramework>
-    <LangVersion>latest</LangVersion>
-    <ImplicitUsings>enable</ImplicitUsings>
+    <TargetFramework>net5.0</TargetFramework>
     <Nullable>enable</Nullable>
     <IsPackable>false</IsPackable>
     <IsTestProject>true</IsTestProject>
@@ -17,10 +15,6 @@
     <PackageReference Include="NUnit3TestAdapter" Version="4.6.0" />
   </ItemGroup>
 
-  <ItemGroup>
-    <Using Include="NUnit.Framework" />
-  </ItemGroup>
-
   <ItemGroup>
     <ProjectReference Include="..\ControlCore.csproj" />
   </ItemGroup>