diff --git a/src/TypedRest.CommandLine/Commands/EndpointCommand.cs b/src/TypedRest.CommandLine/Commands/EndpointCommand.cs
index 8233cdd3..a8819306 100644
--- a/src/TypedRest.CommandLine/Commands/EndpointCommand.cs
+++ b/src/TypedRest.CommandLine/Commands/EndpointCommand.cs
@@ -1,4 +1,4 @@
-using Newtonsoft.Json;
+using System.Text.Json;
 using TypedRest.CommandLine.IO;
 using TypedRest.Endpoints;
 
@@ -60,6 +60,6 @@ protected virtual Task ExecuteInnerAsync(IReadOnlyList<string> args, Cancellatio
     protected virtual T Input<T>(IReadOnlyList<string> args)
         => ((args.Count == 0)
                ? Console.Read<T>()
-               : JsonConvert.DeserializeObject<T>(args[0]))
+               : JsonSerializer.Deserialize<T>(args[0]))
         ?? throw new InvalidOperationException($"Expected {typeof(T)} but got null as input");
 }
diff --git a/src/TypedRest.CommandLine/Executor.cs b/src/TypedRest.CommandLine/Executor.cs
index 96db8520..8ee065bd 100644
--- a/src/TypedRest.CommandLine/Executor.cs
+++ b/src/TypedRest.CommandLine/Executor.cs
@@ -1,4 +1,4 @@
-using Newtonsoft.Json;
+using System.Text.Json;
 using TypedRest.CommandLine.Commands;
 using TypedRest.Endpoints;
 
diff --git a/src/TypedRest.CommandLine/IO/JsonConsole.cs b/src/TypedRest.CommandLine/IO/JsonConsole.cs
index c5f21915..8e1c06e6 100644
--- a/src/TypedRest.CommandLine/IO/JsonConsole.cs
+++ b/src/TypedRest.CommandLine/IO/JsonConsole.cs
@@ -1,4 +1,4 @@
-using Newtonsoft.Json;
+using System.Text.Json;
 
 namespace TypedRest.CommandLine.IO;
 
@@ -8,7 +8,7 @@ namespace TypedRest.CommandLine.IO;
 public class JsonConsole : IConsole
 {
     public T? Read<T>()
-        => JsonConvert.DeserializeObject<T>(Console.ReadLine() ?? throw new EndOfStreamException());
+        => JsonSerializer.Deserialize<T>(Console.ReadLine() ?? throw new EndOfStreamException());
 
     public string Read(string prompt)
     {
@@ -48,7 +48,7 @@ public void Write(object? output)
         bool hasCustomToString = output.GetType().GetMethod(nameof(ToString))?.DeclaringType != typeof(object);
         Console.WriteLine(hasCustomToString
             ? output.ToString()
-            : JsonConvert.SerializeObject(output, Formatting.Indented));
+            : JsonSerializer.Serialize(output, options: new() {WriteIndented = true}));
     }
 
     public void WriteError(string output)