diff --git a/CHANGELOG.md b/CHANGELOG.md
index 089564a9..3dfbda83 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -59,6 +59,7 @@
 
 ## master
 
+* (2022.10.21) 修复`Unity2019.2`上的兼容问题
 * (2022.10.18) 优化`Axis`的数值表现
 * (2022.10.15) 修复`Axis`的`Label`在`DataZoom`开启时可能显示不正常的问题 (#227)
 * (2022.10.14) 增加`DataZoom`对数值轴的支持
diff --git a/Runtime/Internal/BaseChart.cs b/Runtime/Internal/BaseChart.cs
index f9ea93c1..364acdcf 100644
--- a/Runtime/Internal/BaseChart.cs
+++ b/Runtime/Internal/BaseChart.cs
@@ -691,7 +691,7 @@ namespace XCharts.Runtime
 
         public void OnBeforeSerialize()
         {
-#if UNITY_EDITOR && UNITY_2019_1_OR_NEWER
+#if UNITY_EDITOR && UNITY_2019_3_OR_NEWER
             if (!UnityEditor.EditorUtility.IsDirty(this))
                 return;
             UnityEditor.EditorUtility.ClearDirty(this);