diff --git a/16-measure-performance/modeling.csproj b/16-measure-performance/modeling.csproj
index ffe9f61f..bb0e95ae 100644
--- a/16-measure-performance/modeling.csproj
+++ b/16-measure-performance/modeling.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.Azure.Cosmos" Version="3.49.0" />
diff --git a/17-denormalize/modeling.csproj b/17-denormalize/modeling.csproj
index 13cc8a7e..dbf1b735 100644
--- a/17-denormalize/modeling.csproj
+++ b/17-denormalize/modeling.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.Azure.Cosmos" Version="3.49.0" />