diff --git a/PerfTests/PerfTest_Startup/PerfTest_Startup.csproj b/PerfTests/PerfTest_Startup/PerfTest_Startup.csproj
index fa16b7ff97..1f4ca912d6 100644
--- a/PerfTests/PerfTest_Startup/PerfTest_Startup.csproj
+++ b/PerfTests/PerfTest_Startup/PerfTest_Startup.csproj
@@ -2,7 +2,7 @@
 
     <PropertyGroup>
         <OutputType>Exe</OutputType>
-        <TargetFramework>net7.0</TargetFramework>
+        <TargetFramework>net9.0</TargetFramework>
         <ImplicitUsings>enable</ImplicitUsings>
         <Nullable>enable</Nullable>
         <RootNamespace>perftest</RootNamespace>
diff --git a/PerfTests/PerfTest_Startup_v4_144_0/PerfTest_Startup_v4_144_0.csproj b/PerfTests/PerfTest_Startup_v4_144_0/PerfTest_Startup_v4_144_0.csproj
index 562902a0c0..72f0d30d29 100644
--- a/PerfTests/PerfTest_Startup_v4_144_0/PerfTest_Startup_v4_144_0.csproj
+++ b/PerfTests/PerfTest_Startup_v4_144_0/PerfTest_Startup_v4_144_0.csproj
@@ -2,7 +2,7 @@
 
     <PropertyGroup>
         <OutputType>Exe</OutputType>
-        <TargetFramework>net7.0</TargetFramework>
+        <TargetFramework>net9.0</TargetFramework>
         <ImplicitUsings>enable</ImplicitUsings>
         <Nullable>enable</Nullable>
         <RootNamespace>perftest_before</RootNamespace>
diff --git a/PerfTests/PerfTest_Startup_v4_72_0/PerfTest_Startup_v4_72_0.csproj b/PerfTests/PerfTest_Startup_v4_72_0/PerfTest_Startup_v4_72_0.csproj
index 5140e2090b..7627f1bbe4 100644
--- a/PerfTests/PerfTest_Startup_v4_72_0/PerfTest_Startup_v4_72_0.csproj
+++ b/PerfTests/PerfTest_Startup_v4_72_0/PerfTest_Startup_v4_72_0.csproj
@@ -2,7 +2,7 @@
 
     <PropertyGroup>
         <OutputType>Exe</OutputType>
-        <TargetFramework>net7.0</TargetFramework>
+        <TargetFramework>net9.0</TargetFramework>
         <ImplicitUsings>enable</ImplicitUsings>
         <Nullable>enable</Nullable>
         <RootNamespace>perftest_before</RootNamespace>
diff --git a/UnitsNet.Benchmark/UnitsNet.Benchmark.csproj b/UnitsNet.Benchmark/UnitsNet.Benchmark.csproj
index a2b8fcc1d5..2025f71740 100644
--- a/UnitsNet.Benchmark/UnitsNet.Benchmark.csproj
+++ b/UnitsNet.Benchmark/UnitsNet.Benchmark.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFrameworks>net6.0;net48</TargetFrameworks>
+    <TargetFrameworks>net9.0;net48</TargetFrameworks>
     <Version>4.0.0.0</Version>
     <AssemblyVersion>4.0.0.0</AssemblyVersion>
     <AssemblyTitle>UnitsNet.Benchmark</AssemblyTitle>
diff --git a/UnitsNet.NumberExtensions.Tests/UnitsNet.NumberExtensions.Tests.csproj b/UnitsNet.NumberExtensions.Tests/UnitsNet.NumberExtensions.Tests.csproj
index 2265b137b7..c2254d90ba 100644
--- a/UnitsNet.NumberExtensions.Tests/UnitsNet.NumberExtensions.Tests.csproj
+++ b/UnitsNet.NumberExtensions.Tests/UnitsNet.NumberExtensions.Tests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net7.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
     <RootNamespace>UnitsNet.NumberExtensions.Tests</RootNamespace>
     <LangVersion>latest</LangVersion>
     <Nullable>enable</Nullable>
diff --git a/UnitsNet.Serialization.JsonNet.Tests/UnitsNet.Serialization.JsonNet.Tests.csproj b/UnitsNet.Serialization.JsonNet.Tests/UnitsNet.Serialization.JsonNet.Tests.csproj
index cb03458e8d..c2d9ad54a0 100644
--- a/UnitsNet.Serialization.JsonNet.Tests/UnitsNet.Serialization.JsonNet.Tests.csproj
+++ b/UnitsNet.Serialization.JsonNet.Tests/UnitsNet.Serialization.JsonNet.Tests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
     <RootNamespace>UnitsNet.Serialization.JsonNet.Tests</RootNamespace>
     <LangVersion>latest</LangVersion>
     <IsTestProject>true</IsTestProject>
diff --git a/UnitsNet.Tests/UnitsNet.Tests.csproj b/UnitsNet.Tests/UnitsNet.Tests.csproj
index 801d9374e0..810fe29d47 100644
--- a/UnitsNet.Tests/UnitsNet.Tests.csproj
+++ b/UnitsNet.Tests/UnitsNet.Tests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>net7.0;net48</TargetFrameworks>
+    <TargetFrameworks>net9.0;net48</TargetFrameworks>
     <LangVersion>latest</LangVersion>
     <IsTestProject>true</IsTestProject>
     <NoWarn>CS0618</NoWarn><!-- CS0618: 'member' is obsolete: 'text' (we often obsolete things before removal) -->