diff --git a/BASE/Test/Microsoft.ApplicationInsights.Test/Standalone/Microsoft.ApplicationInsights.Isolated.Tests.csproj b/BASE/Test/Microsoft.ApplicationInsights.Test/Standalone/Microsoft.ApplicationInsights.Isolated.Tests.csproj
index ac83ed48e3..18a7401cfc 100644
--- a/BASE/Test/Microsoft.ApplicationInsights.Test/Standalone/Microsoft.ApplicationInsights.Isolated.Tests.csproj
+++ b/BASE/Test/Microsoft.ApplicationInsights.Test/Standalone/Microsoft.ApplicationInsights.Isolated.Tests.csproj
@@ -40,7 +40,7 @@
     <PackageReference Include="System.Security.Cryptography.Encoding" Version="4.3.0" />
     <PackageReference Include="System.Security.Cryptography.Primitives" Version="4.3.0" />
     <PackageReference Include="System.Security.Cryptography.X509Certificates" Version="4.3.0" />
-    <PackageReference Include="System.Text.Encoding.CodePages" Version="4.3.0" />
+    <PackageReference Include="System.Text.Encoding.CodePages" Version="5.0.0" />
     <PackageReference Include="System.Threading.Thread" Version="4.3.0" />
     <PackageReference Include="System.ValueTuple" Version="4.3.0" />
     <PackageReference Include="System.Xml.ReaderWriter" Version="4.3.0" />