diff --git a/build/deploy-local-smapi.targets b/build/deploy-local-smapi.targets
index bc97dedf8..26c29af53 100644
--- a/build/deploy-local-smapi.targets
+++ b/build/deploy-local-smapi.targets
@@ -22,7 +22,7 @@ This assumes `find-game-folder.targets` has already been imported and validated.
     <Copy SourceFiles="$(TargetDir)\SMAPI.config.json" DestinationFiles="$(GamePath)\smapi-internal\config.json" />
     <Copy SourceFiles="$(TargetDir)\SMAPI.metadata.json" DestinationFiles="$(GamePath)\smapi-internal\metadata.json" />
     <Copy SourceFiles="$(TargetDir)\Newtonsoft.Json.dll" DestinationFolder="$(GamePath)\smapi-internal" />
-    <Copy SourceFiles="$(TargetDir)\Newtonsoft.Json.Schema.dll" DestinationFolder="$(GamePath)\smapi-internal" />
+    <Copy SourceFiles="$(TargetDir)\NJsonSchema.dll" DestinationFolder="$(GamePath)\smapi-internal" />
     <Copy SourceFiles="$(TargetDir)\TMXTile.dll" DestinationFolder="$(GamePath)\smapi-internal" />
     <Copy SourceFiles="$(TargetDir)\Pintail.dll" DestinationFolder="$(GamePath)\smapi-internal" />
     <Copy SourceFiles="@(TranslationFiles)" DestinationFolder="$(GamePath)\smapi-internal\i18n" />
diff --git a/src/SMAPI.Toolkit/SMAPI.Toolkit.csproj b/src/SMAPI.Toolkit/SMAPI.Toolkit.csproj
index 8871d9bdf..a861883bd 100644
--- a/src/SMAPI.Toolkit/SMAPI.Toolkit.csproj
+++ b/src/SMAPI.Toolkit/SMAPI.Toolkit.csproj
@@ -11,7 +11,7 @@
   <ItemGroup>
     <PackageReference Include="HtmlAgilityPack" Version="1.11.52" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
-    <PackageReference Include="Newtonsoft.Json.Schema" Version="3.0.15" />
+    <PackageReference Include="NJsonSchema" Version="11.0.1" />
     <PackageReference Include="Pathoschild.Http.FluentClient" Version="4.3.0" />
     <PackageReference Include="System.Management" Version="5.0.0" Condition="'$(OS)' == 'Windows_NT'" />
     <PackageReference Include="Microsoft.Win32.Registry" Version="5.0.0" Condition="'$(OS)' == 'Windows_NT'" />
diff --git a/src/SMAPI.Toolkit/Serialization/JsonHelper.cs b/src/SMAPI.Toolkit/Serialization/JsonHelper.cs
index a1ae915af..539ef344e 100644
--- a/src/SMAPI.Toolkit/Serialization/JsonHelper.cs
+++ b/src/SMAPI.Toolkit/Serialization/JsonHelper.cs
@@ -1,11 +1,9 @@
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.CodeAnalysis;
 using System.IO;
 using Newtonsoft.Json;
 using Newtonsoft.Json.Converters;
-using Newtonsoft.Json.Schema;
-using Newtonsoft.Json.Schema.Generation;
+using NJsonSchema;
 using StardewModdingAPI.Toolkit.Serialization.Converters;
 
 namespace StardewModdingAPI.Toolkit.Serialization
@@ -13,20 +11,6 @@ namespace StardewModdingAPI.Toolkit.Serialization
     /// <summary>Encapsulates SMAPI's JSON file parsing.</summary>
     public class JsonHelper
     {
-        /*********
-        ** Fields
-        *********/
-        /// <summary>The JSON schema generator to use when creating a schema file.</summary>
-        private readonly JSchemaGenerator SchemaGenerator = new();
-
-        /// <summary>The JSON settings to use when creating a schema file.</summary>
-        private readonly JSchemaWriterSettings SchemaWriterSettings = new()
-        {
-            Version = SchemaVersion.Draft2019_09,
-            ReferenceHandling = JSchemaWriterReferenceHandling.Never
-        };
-
-
         /*********
         ** Accessors
         *********/
@@ -61,7 +45,7 @@ public static JsonSerializerSettings CreateDefaultSettings()
         /// <exception cref="JsonReaderException">The file contains invalid JSON.</exception>
         public bool ReadJsonFileIfExists<TModel>(string fullPath,
 #if NET6_0_OR_GREATER
-            [NotNullWhen(true)]
+            [System.Diagnostics.CodeAnalysis.NotNullWhen(true)]
 #endif
             out TModel? result
         )
@@ -142,8 +126,8 @@ public void WriteJsonSchemaFile<TModel>(string fullPath)
                 Directory.CreateDirectory(dir);
 
             // write file
-            JSchema schema = this.SchemaGenerator.Generate(typeof(TModel));
-            string json = schema.ToString(this.SchemaWriterSettings);
+            JsonSchema schema = JsonSchema.FromType<TModel>();
+            string json = schema.ToJson();
             File.WriteAllText(fullPath, json);
         }