diff --git a/samples/01_basic_ping_bot/01_basic_ping_bot.csproj b/samples/01_basic_ping_bot/01_basic_ping_bot.csproj
index 4b4e35e3f..128082edb 100644
--- a/samples/01_basic_ping_bot/01_basic_ping_bot.csproj
+++ b/samples/01_basic_ping_bot/01_basic_ping_bot.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp3.0</TargetFramework>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/samples/02_commands_framework/02_commands_framework.csproj b/samples/02_commands_framework/02_commands_framework.csproj
index 84b30aa99..151e546a2 100644
--- a/samples/02_commands_framework/02_commands_framework.csproj
+++ b/samples/02_commands_framework/02_commands_framework.csproj
@@ -2,11 +2,11 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp3.0</TargetFramework>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="3.0.0" />
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="3.1.0" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/samples/03_sharded_client/03_sharded_client.csproj b/samples/03_sharded_client/03_sharded_client.csproj
index a6599c117..24f9942f9 100644
--- a/samples/03_sharded_client/03_sharded_client.csproj
+++ b/samples/03_sharded_client/03_sharded_client.csproj
@@ -2,12 +2,12 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp3.0</TargetFramework>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
     <RootNamespace>_03_sharded_client</RootNamespace>
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="3.0.0" />
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="3.1.0" />
   </ItemGroup>
 
   <ItemGroup>