diff --git a/OpenUtau.Core/BaseChinesePhonemizer.cs b/OpenUtau.Core/BaseChinesePhonemizer.cs
index 78c57c375..d81c8038e 100644
--- a/OpenUtau.Core/BaseChinesePhonemizer.cs
+++ b/OpenUtau.Core/BaseChinesePhonemizer.cs
@@ -1,8 +1,8 @@
 using System.Collections.Generic;
 using System.Linq;
-using IKg2p;
 using OpenUtau.Api;
 using OpenUtau.Core.Ustx;
+using Pinyin;
 
 namespace OpenUtau.Core {
     public abstract class BaseChinesePhonemizer : Phonemizer {
@@ -22,16 +22,15 @@ public static Note[] ChangeLyric(Note[] group, string lyric) {
         public static string[] Romanize(IEnumerable<string> lyrics) {
             var lyricsArray = lyrics.ToArray();
             var hanziLyrics = lyricsArray
-                .Where(ZhG2p.MandarinInstance.IsHanzi)
+                .Where(Pinyin.Pinyin.Instance.IsHanzi)
                 .ToList();
-            List<G2pRes> g2pResults = ZhG2p.MandarinInstance.Convert(hanziLyrics.ToList(), false, false);
-            var pinyinResult = g2pResults.Select(res => res.syllable).ToArray();
+            var pinyinResult = Pinyin.Pinyin.Instance.HanziToPinyin(hanziLyrics, ManTone.Style.NORMAL, Pinyin.Error.Default, false, false, false).ToStrList();
             if (pinyinResult == null) {
                 return lyricsArray;
             }
             var pinyinIndex = 0;
             for (int i = 0; i < lyricsArray.Length; i++) {
-                if (lyricsArray[i].Length == 1 && ZhG2p.MandarinInstance.IsHanzi(lyricsArray[i])) {
+                if (lyricsArray[i].Length == 1 && Pinyin.Pinyin.Instance.IsHanzi(lyricsArray[i])) {
                     lyricsArray[i] = pinyinResult[pinyinIndex];
                     pinyinIndex++;
                 }
diff --git a/OpenUtau.Core/DiffSinger/Phonemizers/DiffSingerJyutpingPhonemizer.cs b/OpenUtau.Core/DiffSinger/Phonemizers/DiffSingerJyutpingPhonemizer.cs
index b6d268add..ebe880660 100644
--- a/OpenUtau.Core/DiffSinger/Phonemizers/DiffSingerJyutpingPhonemizer.cs
+++ b/OpenUtau.Core/DiffSinger/Phonemizers/DiffSingerJyutpingPhonemizer.cs
@@ -1,16 +1,15 @@
 using System.Collections.Generic;
 using System.Linq;
-using IKg2p;
 using OpenUtau.Api;
+using Pinyin;
 
 namespace OpenUtau.Core.DiffSinger {
     [Phonemizer("DiffSinger Jyutping Phonemizer", "DIFFS ZH-YUE", language: "ZH-YUE")]
     public class DiffSingerJyutpingPhonemizer : DiffSingerBasePhonemizer {
         protected override string GetDictionaryName() => "dsdict-zh-yue.yaml";
-        protected override string GetLangCode()=>"yue";
+        protected override string GetLangCode() => "yue";
         protected override string[] Romanize(IEnumerable<string> lyrics) {
-            List<G2pRes> g2pResults = ZhG2p.CantoneseInstance.Convert(lyrics.ToList(), false, false);
-            return g2pResults.Select(res => res.syllable).ToArray();
+            return Pinyin.Jyutping.Instance.HanziToPinyin(lyrics.ToList(), CanTone.Style.NORMAL, Pinyin.Error.Default).Select(res => res.pinyin).ToArray();
         }
     }
 }
diff --git a/OpenUtau.Core/OpenUtau.Core.csproj b/OpenUtau.Core/OpenUtau.Core.csproj
index 3ee51bdca..5556bdc23 100644
--- a/OpenUtau.Core/OpenUtau.Core.csproj
+++ b/OpenUtau.Core/OpenUtau.Core.csproj
@@ -10,8 +10,8 @@
   <ItemGroup>
     <PackageReference Include="BunLabs.NAudio.Flac" Version="2.0.1" />
     <PackageReference Include="Concentus.OggFile" Version="1.0.4" />
+    <PackageReference Include="csharp-pinyin" Version="1.0.0" />
     <PackageReference Include="Ignore" Version="0.1.50" />
-    <PackageReference Include="IkG2p" Version="1.0.6" />
     <PackageReference Include="K4os.Hash.xxHash" Version="1.0.8" />
     <PackageReference Include="Melanchall.DryWetMidi" Version="7.0.2" />
     <PackageReference Include="NAudio.Core" Version="2.2.1" />
diff --git a/OpenUtau.Core/Util/LyricsHelper.cs b/OpenUtau.Core/Util/LyricsHelper.cs
index f4b9e75b7..55cb5cc54 100644
--- a/OpenUtau.Core/Util/LyricsHelper.cs
+++ b/OpenUtau.Core/Util/LyricsHelper.cs
@@ -1,9 +1,9 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using IKg2p;
 using OpenUtau.Api;
 using OpenUtau.Core.G2p;
+using Pinyin;
 
 namespace OpenUtau.Core.Util {
     public interface ILyricsHelper {
@@ -58,16 +58,14 @@ public string Convert(string text) {
     public class PinyinLyricsHelper : ILyricsHelper {
         public string Source => "汉->han";
         public string Convert(string lyric) {
-            List<G2pRes> g2pResults = ZhG2p.MandarinInstance.Convert(lyric, false, true);
-            return g2pResults.Select(res => res.syllable).ToArray()[0];
+            return Pinyin.Pinyin.Instance.GetDefaultPinyin(lyric, ManTone.Style.NORMAL, false, false).ToArray()[0];
         }
     }
 
     public class JyutpingLyricsHelper : ILyricsHelper {
         public string Source => "粤->jyut";
         public string Convert(string lyric) {
-            List<G2pRes> g2pResults = ZhG2p.CantoneseInstance.Convert(lyric, false, true);
-            return g2pResults.Select(res => res.syllable).ToArray()[0];
+            return Pinyin.Jyutping.Instance.GetDefaultPinyin(lyric, CanTone.Style.NORMAL).ToArray()[0];
         }
     }
 
diff --git a/OpenUtau.Plugin.Builtin/CantoneseCVVCPhonemizer.cs b/OpenUtau.Plugin.Builtin/CantoneseCVVCPhonemizer.cs
index 04af4ae04..19568561a 100644
--- a/OpenUtau.Plugin.Builtin/CantoneseCVVCPhonemizer.cs
+++ b/OpenUtau.Plugin.Builtin/CantoneseCVVCPhonemizer.cs
@@ -1,7 +1,7 @@
 using System.Collections.Generic;
 using System.Linq;
-using IKg2p;
 using OpenUtau.Api;
+using Pinyin;
 
 namespace OpenUtau.Plugin.Builtin {
     /// <summary>
@@ -12,8 +12,7 @@ namespace OpenUtau.Plugin.Builtin {
     [Phonemizer("Cantonese CVVC Phonemizer", "ZH-YUE CVVC", "Lotte V", language: "ZH-YUE")]
     public class CantoneseCVVCPhonemizer : ChineseCVVCPhonemizer {
         protected override string[] Romanize(IEnumerable<string> lyrics) {
-            List<G2pRes> g2pResults = ZhG2p.CantoneseInstance.Convert(lyrics.ToList(), false, false);
-            return g2pResults.Select(res => res.syllable).ToArray();
+            return Pinyin.Jyutping.Instance.HanziToPinyin(lyrics.ToList(), CanTone.Style.NORMAL, Pinyin.Error.Default).Select(res => res.pinyin).ToArray();
         }
     }
 }
diff --git a/OpenUtau.Plugin.Builtin/CantoneseSyoPhonemizer.cs b/OpenUtau.Plugin.Builtin/CantoneseSyoPhonemizer.cs
index 7812b0def..a70351a96 100644
--- a/OpenUtau.Plugin.Builtin/CantoneseSyoPhonemizer.cs
+++ b/OpenUtau.Plugin.Builtin/CantoneseSyoPhonemizer.cs
@@ -1,8 +1,8 @@
 using System.Collections.Generic;
 using System.Linq;
-using IKg2p;
 using OpenUtau.Api;
 using OpenUtau.Core.Ustx;
+using Pinyin;
 
 namespace OpenUtau.Plugin.Builtin {
     /// <summary>
@@ -286,16 +286,15 @@ public static Note[] ChangeLyric(Note[] group, string lyric) {
             public static string[] Romanize(IEnumerable<string> lyrics) {
                 var lyricsArray = lyrics.ToArray();
                 var hanziLyrics = lyricsArray
-                    .Where(ZhG2p.CantoneseInstance.IsHanzi)
+                    .Where(Pinyin.Jyutping.Instance.IsHanzi)
                     .ToList();
-                List<G2pRes> g2pResults = ZhG2p.CantoneseInstance.Convert(hanziLyrics.ToList(), false, false);
-                var jyutpingResult = g2pResults.Select(res => res.syllable).ToArray();
+                var jyutpingResult = Pinyin.Jyutping.Instance.HanziToPinyin(hanziLyrics, CanTone.Style.NORMAL, Pinyin.Error.Default).ToStrList();
                 if (jyutpingResult == null) {
                     return lyricsArray;
                 }
                 var jyutpingIndex = 0;
                 for (int i = 0; i < lyricsArray.Length; i++) {
-                    if (lyricsArray[i].Length == 1 && ZhG2p.CantoneseInstance.IsHanzi(lyricsArray[i])) {
+                    if (lyricsArray[i].Length == 1 && Pinyin.Jyutping.Instance.IsHanzi(lyricsArray[i])) {
                         lyricsArray[i] = jyutpingResult[jyutpingIndex];
                         jyutpingIndex++;
                     }