diff --git a/src/CodeReview.FileConverter/CodeReview.FileConverter.csproj b/src/CodeReview.FileConverter/CodeReview.FileConverter.csproj
index 13bfcfd..afd53f5 100644
--- a/src/CodeReview.FileConverter/CodeReview.FileConverter.csproj
+++ b/src/CodeReview.FileConverter/CodeReview.FileConverter.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net5.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
     <RootNamespace>GodelTech.CodeReview.FileConverter</RootNamespace>
   </PropertyGroup>
 
@@ -10,7 +10,7 @@
     <PackageReference Include="CommandLineParser" Version="2.8.0" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="5.0.1" />
     <PackageReference Include="Microsoft.Extensions.Logging.Console" Version="5.0.0" />
-    <PackageReference Include="Newtonsoft.Json" Version="12.0.3" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
     <PackageReference Include="YamlDotNet" Version="9.1.0" />
   </ItemGroup>
 
diff --git a/src/CodeReview.FileConverter/Dockerfile b/src/CodeReview.FileConverter/Dockerfile
index f33e3fe..e62c104 100644
--- a/src/CodeReview.FileConverter/Dockerfile
+++ b/src/CodeReview.FileConverter/Dockerfile
@@ -1,5 +1,5 @@
 #See https://aka.ms/containerfastmode to understand how Visual Studio uses this Dockerfile to build your images for faster debugging.
-FROM mcr.microsoft.com/dotnet/sdk:5.0-alpine AS build
+FROM mcr.microsoft.com/dotnet/sdk:9.0-alpine AS build
 WORKDIR /app
 COPY ["CodeReview.FileConverter/*.csproj", "CodeReview.FileConverter/"]
 RUN dotnet restore "CodeReview.FileConverter/CodeReview.FileConverter.csproj" --force
@@ -7,7 +7,7 @@ RUN dotnet restore "CodeReview.FileConverter/CodeReview.FileConverter.csproj" --
 COPY CodeReview.FileConverter/. ./CodeReview.FileConverter/
 RUN dotnet publish ./CodeReview.FileConverter/CodeReview.FileConverter.csproj -c Release -o ./CodeReview.FileConverter/out
 
-FROM mcr.microsoft.com/dotnet/runtime:5.0 AS runtime
+FROM mcr.microsoft.com/dotnet/runtime:9.0 AS runtime
 
 WORKDIR /app
 COPY --from=build /app/CodeReview.FileConverter/out .
diff --git a/tests/CodeReview.FileConverter.IntegrationTests/CodeReview.FileConverter.IntegrationTests.csproj b/tests/CodeReview.FileConverter.IntegrationTests/CodeReview.FileConverter.IntegrationTests.csproj
index 811132d..913193d 100644
--- a/tests/CodeReview.FileConverter.IntegrationTests/CodeReview.FileConverter.IntegrationTests.csproj
+++ b/tests/CodeReview.FileConverter.IntegrationTests/CodeReview.FileConverter.IntegrationTests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net5.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
 
     <IsPackable>false</IsPackable>
   </PropertyGroup>