diff --git a/Documentation~/zh/changelog.md b/Documentation~/zh/changelog.md
index 1604a648..b3f6472b 100644
--- a/Documentation~/zh/changelog.md
+++ b/Documentation~/zh/changelog.md
@@ -75,6 +75,7 @@ slug: /changelog
 
 ## master
 
+* (2024.07.29) 修复`Tooltip`在微信小游戏平台上报错的兼容问题 (#326)
 * (2024.07.27) 调整`Axis`的`AxisName`的默认位置
 * (2024.07.22) 优化`Pie`的`Label`在`Tooltip`触发时的表现
 * (2024.07.21) 修复`Tooltip`在开启`DataZoom`时指示内容不准确的问题
diff --git a/Runtime/Internal/Utilities/ChartCached.cs b/Runtime/Internal/Utilities/ChartCached.cs
index cda8bbb8..1a07f332 100644
--- a/Runtime/Internal/Utilities/ChartCached.cs
+++ b/Runtime/Internal/Utilities/ChartCached.cs
@@ -12,7 +12,7 @@ namespace XCharts.Runtime
         private const string NUMERIC_FORMATTER_X = "X";
         private const string NUMERIC_FORMATTER_x = "x";
         private static readonly string s_DefaultAxis = "axis_";
-        private static CultureInfo ci = new CultureInfo("en-us"); // "en-us", "zh-cn", "ar-iq", "de-de"
+        private static CultureInfo ci = GetDefaultCultureInfo(); // "en-us", "zh-cn", "ar-iq", "de-de"
         private static Dictionary<Color, string> s_ColorToStr = new Dictionary<Color, string>(100);
         private static Dictionary<int, string> s_SerieLabelName = new Dictionary<int, string>(1000);
         private static Dictionary<Color, string> s_ColorDotStr = new Dictionary<Color, string>(100);
@@ -24,6 +24,18 @@ namespace XCharts.Runtime
         private static Dictionary<int, Dictionary<string, string>> s_PrecisionToStr = new Dictionary<int, Dictionary<string, string>>();
         private static Dictionary<string, Dictionary<int, string>> s_StringIntDict = new Dictionary<string, Dictionary<int, string>>();
 
+        private static CultureInfo GetDefaultCultureInfo()
+        {
+            try
+            {
+                return new CultureInfo("en-us");
+            }
+            catch (Exception)
+            {
+                return CultureInfo.InvariantCulture;
+            }
+        }
+
         public static string FloatToStr(double value, string numericFormatter = "F", int precision = 0)
         {
             if (precision > 0 && numericFormatter.Length == 1)