diff --git a/OptimizelySDK.NetStandard16/OptimizelySDK.NetStandard16.csproj b/OptimizelySDK.NetStandard16/OptimizelySDK.NetStandard16.csproj
index 44240b2a..ab55bbac 100644
--- a/OptimizelySDK.NetStandard16/OptimizelySDK.NetStandard16.csproj
+++ b/OptimizelySDK.NetStandard16/OptimizelySDK.NetStandard16.csproj
@@ -163,5 +163,7 @@
         <PackageReference Include="Newtonsoft.Json" Version="13.0.2" />
         <PackageReference Include="NJsonSchema" Version="10.8.0" />
         <PackageReference Include="murmurhash-signed" Version="1.0.2" />
+        <PackageReference Include="System.Net.Http" Version="4.3.4" />
+        <PackageReference Include="System.Text.RegularExpressions" Version="4.3.1" />
     </ItemGroup>
 </Project>