diff --git a/src/Directory.Packages.props b/src/Directory.Packages.props
index 74b9a5d0..76d9d2b2 100644
--- a/src/Directory.Packages.props
+++ b/src/Directory.Packages.props
@@ -12,7 +12,7 @@
     <PackageVersion Include="ILMerge.Fody" Version="1.24.0" />
     <PackageVersion Include="JetBrains.Annotations" Version="2024.2.0" />
     <PackageVersion Include="Microsoft.CSharp" Version="4.7.0" />
-    <PackageVersion Include="Microsoft.DeepDev.TokenizerLib" Version="[1.3.3]" />
+    <PackageVersion Include="Microsoft.ML.Tokenizers" Version="0.22.0-preview.24378.1" />
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.11.1" />
     <PackageVersion Include="Microsoft.SourceLink.GitHub" Version="8.0.0" />
     <PackageVersion Include="Microsoft.VisualStudio.SDK" Version="[15.0.1]" />
diff --git a/src/ResXManager.Translators/AzureOpenAITranslator.cs b/src/ResXManager.Translators/AzureOpenAITranslator.cs
index 041076e6..881f6d70 100644
--- a/src/ResXManager.Translators/AzureOpenAITranslator.cs
+++ b/src/ResXManager.Translators/AzureOpenAITranslator.cs
@@ -1,6 +1,6 @@
 namespace ResXManager.Translators;
 
-using global::Microsoft.DeepDev;
+using global::Microsoft.ML.Tokenizers;
 using Newtonsoft.Json;
 using ResXManager.Infrastructure;
 using System;
@@ -138,11 +138,11 @@ private sealed class ChatCompletionsResponse
 
     private async Task TranslateUsingChatModel(ITranslationSession translationSession, HttpClient client)
     {
-        const string ApiVersion = "2023-05-15";
+        const string ApiVersion = "2024-06-01";
         var endpointUri = new Uri($"/openai/deployments/{ModelDeploymentName}/chat/completions?api-version={ApiVersion}", UriKind.Relative);
-        var tokenizer = await TokenizerBuilder.CreateByModelNameAsync(
+        var tokenizer = TiktokenTokenizer.CreateForModel(
             ModelName ?? throw new InvalidOperationException("No model name provided in configuration!")
-            ).ConfigureAwait(false);
+            );
 
         var retries = 0;
 
@@ -200,7 +200,7 @@ private async Task TranslateUsingChatModel(ITranslationSession translationSessio
     }
 
     private IEnumerable<(ChatMessage message, ICollection<ITranslationItem> items)> PackChatModelMessagesIntoBatches(
-        ITranslationSession translationSession, IEnumerable<ITranslationItem> items, CultureInfo targetCulture, ITokenizer tokenizer
+        ITranslationSession translationSession, IEnumerable<ITranslationItem> items, CultureInfo targetCulture, TiktokenTokenizer tokenizer
         )
     {
         var batchItems = new List<ITranslationItem>();
@@ -209,7 +209,7 @@ private async Task TranslateUsingChatModel(ITranslationSession translationSessio
 
         foreach (var item in items)
         {
-            var currentBatch = batchItems.Concat(new[] { item }).ToList();
+            var currentBatch = batchItems.Concat([item]).ToList();
 
             var currentMessage = GenerateChatModelMessageForTranslations(translationSession, currentBatch, targetCulture);
             if (currentMessage?.Content is null)
@@ -218,7 +218,7 @@ private async Task TranslateUsingChatModel(ITranslationSession translationSessio
                 continue;
             }
 
-            var tokens = tokenizer.Encode(currentMessage.Content, new List<string>()).Count;
+            var tokens = tokenizer.CountTokens(currentMessage.Content);
             if (tokens > PromptTokens)
             {
                 translationSession.AddMessage($"Prompt for resource would exceed {PromptTokens} tokens: {item.Source.Substring(0, 20)}...");
@@ -235,7 +235,7 @@ private async Task TranslateUsingChatModel(ITranslationSession translationSessio
             {
                 yield return (batchMessage, batchItems);
 
-                batchItems = new List<ITranslationItem>();
+                batchItems = [];
                 batchTokens = 0;
             }
 
@@ -414,11 +414,11 @@ private sealed class CompletionsResponse
 
     private async Task TranslateUsingCompletionsModel(ITranslationSession translationSession, HttpClient client)
     {
-        const string ApiVersion = "2023-05-15";
+        const string ApiVersion = "2024-06-01";
         var endpointUri = new Uri($"/openai/deployments/{ModelDeploymentName}/completions?api-version={ApiVersion}", UriKind.Relative);
-        var tokenizer = await TokenizerBuilder.CreateByModelNameAsync(
+        var tokenizer = TiktokenTokenizer.CreateForModel(
             ModelName ?? throw new InvalidOperationException("No model name provided in configuration!")
-            ).ConfigureAwait(false);
+            );
 
         var retries = 0;
 
@@ -467,7 +467,7 @@ private async Task TranslateUsingCompletionsModel(ITranslationSession translatio
         }
     }
 
-    private IEnumerable<PromptList> PackCompletionModelPromptsIntoBatches(ITranslationSession translationSession, ITokenizer tokenizer)
+    private IEnumerable<PromptList> PackCompletionModelPromptsIntoBatches(ITranslationSession translationSession, TiktokenTokenizer tokenizer)
     {
         var batchItems = new PromptList();
         var batchTokens = 0;
@@ -481,7 +481,7 @@ private IEnumerable<PromptList> PackCompletionModelPromptsIntoBatches(ITranslati
                 continue;
             }
 
-            var tokens = tokenizer.Encode(prompt, new List<string>()).Count;
+            var tokens = tokenizer.CountTokens(prompt);
 
             if (tokens > PromptTokens)
             {
@@ -499,7 +499,7 @@ private IEnumerable<PromptList> PackCompletionModelPromptsIntoBatches(ITranslati
             {
                 yield return batchItems;
 
-                batchItems = new PromptList();
+                batchItems = [];
                 batchTokens = 0;
             }
 
@@ -634,12 +634,12 @@ public string? ModelName
 
     private static IList<ICredentialItem> GetCredentials()
     {
-        return new ICredentialItem[]
-        {
+        return
+        [
             new CredentialItem("AuthenticationKey", "Key"),
             new CredentialItem("Url", "Endpoint Url", false),
             new CredentialItem("ModelDeploymentName", "Model Deployment Name", false),
             new CredentialItem("ModelName", "Model Name", false),
-        };
+        ];
     }
 }
diff --git a/src/ResXManager.Translators/FodyWeavers.xml b/src/ResXManager.Translators/FodyWeavers.xml
index 6c847fc3..c7599a7a 100644
--- a/src/ResXManager.Translators/FodyWeavers.xml
+++ b/src/ResXManager.Translators/FodyWeavers.xml
@@ -2,5 +2,5 @@
 <Weavers xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="FodyWeavers.xsd">
   <Throttle />
   <PropertyChanged />
-  <ILMerge IncludeAssemblies="Microsoft.DeepDev.TokenizerLib" />
+  <ILMerge IncludeAssemblies="Microsoft.ML.Tokenizers" />
 </Weavers>
\ No newline at end of file
diff --git a/src/ResXManager.Translators/OpenAITranslator.cs b/src/ResXManager.Translators/OpenAITranslator.cs
index d223c453..688d68c0 100644
--- a/src/ResXManager.Translators/OpenAITranslator.cs
+++ b/src/ResXManager.Translators/OpenAITranslator.cs
@@ -1,6 +1,6 @@
 namespace ResXManager.Translators;
 
-using global::Microsoft.DeepDev;
+using global::Microsoft.ML.Tokenizers;
 using Newtonsoft.Json;
 using ResXManager.Infrastructure;
 using System;
@@ -145,9 +145,9 @@ private sealed class CompletionsResponse
     private async Task TranslateUsingCompletionsModel(ITranslationSession translationSession, HttpClient client)
     {
         var endpointUri = new Uri($"/v1/chat/completions", UriKind.Relative);
-        var tokenizer = await TokenizerBuilder.CreateByModelNameAsync(
+        var tokenizer = TiktokenTokenizer.CreateForModel(
             ModelName ?? throw new InvalidOperationException("No model name provided in configuration!")
-            ).ConfigureAwait(false);
+            );
 
         var retries = 0;
 
@@ -200,7 +200,7 @@ private async Task TranslateUsingCompletionsModel(ITranslationSession translatio
         }
     }
 
-    private IEnumerable<(ITranslationItem item, string prompt)> PackCompletionModelPrompts(ITranslationSession translationSession, ITokenizer tokenizer)
+    private IEnumerable<(ITranslationItem item, string prompt)> PackCompletionModelPrompts(ITranslationSession translationSession, TiktokenTokenizer tokenizer)
     {
         foreach (var item in translationSession.Items)
         {
@@ -211,7 +211,7 @@ private async Task TranslateUsingCompletionsModel(ITranslationSession translatio
                 continue;
             }
 
-            var tokens = tokenizer.Encode(prompt, new List<string>()).Count;
+            var tokens = tokenizer.CountTokens(prompt);
 
             if (tokens > PromptTokens)
             {
@@ -328,10 +328,10 @@ public string? ModelName
 
     private static IList<ICredentialItem> GetCredentials()
     {
-        return new ICredentialItem[]
-        {
+        return
+        [
             new CredentialItem("AuthenticationKey", "Key"),
             new CredentialItem("ModelName", "Model Name", false),
-        };
+        ];
     }
 }
diff --git a/src/ResXManager.Translators/ResXManager.Translators.csproj b/src/ResXManager.Translators/ResXManager.Translators.csproj
index fc3a3cd6..85b76b7d 100644
--- a/src/ResXManager.Translators/ResXManager.Translators.csproj
+++ b/src/ResXManager.Translators/ResXManager.Translators.csproj
@@ -52,7 +52,7 @@
   <ItemGroup>
     <PackageReference Include="Fody" PrivateAssets="all" />
     <PackageReference Include="ILMerge.Fody" PrivateAssets="all" />
-    <PackageReference Include="Microsoft.DeepDev.TokenizerLib" />
+    <PackageReference Include="Microsoft.ML.Tokenizers" />
     <PackageReference Include="PropertyChanged.Fody" PrivateAssets="all" />
     <PackageReference Include="System.ComponentModel.Annotations" />
     <PackageReference Include="System.Net.Http" />