diff --git a/src/Humanizer/Humanizer.csproj b/src/Humanizer/Humanizer.csproj
index 339f6e9bf..34c64e0ec 100644
--- a/src/Humanizer/Humanizer.csproj
+++ b/src/Humanizer/Humanizer.csproj
@@ -20,7 +20,7 @@
     <PackageReference Include="System.Collections.Immutable" Version="8.0.0" Condition="'$(TargetFramework)' != 'net8.0'" />
     <PackageReference Include="System.ValueTuple" Version="4.5.0" Condition="$(TargetFramework.StartsWith('net46')) or (TargetFramework) != '.NETStandard'" />
     <PackageReference Include="System.Memory" Version="4.5.5" Condition="$(TargetFramework) != '.NETStandard' or $(TargetFrameworkIdentifier) == '.NETFramework'" />
-    <PackageReference Include="System.ComponentModel.Annotations" Version="4.3.0" Condition="'$(TargetFramework)' == 'netstandard2.0' or $(TargetFrameworkIdentifier) == '.NETFramework'" />
+    <PackageReference Include="System.ComponentModel.Annotations" Version="5.0.0" Condition="'$(TargetFramework)' == 'netstandard2.0' or $(TargetFrameworkIdentifier) == '.NETFramework'" />
     <None Update="FluentDate\InDate.Months.tt">
       <LastGenOutput>InDate.Months.cs</LastGenOutput>
       <Generator>TextTemplatingFileGenerator</Generator>