diff --git a/src/JsonApiDotNetCore/JsonApiDotNetCore.csproj b/src/JsonApiDotNetCore/JsonApiDotNetCore.csproj
index e9d5eea415..7019a8e6cc 100755
--- a/src/JsonApiDotNetCore/JsonApiDotNetCore.csproj
+++ b/src/JsonApiDotNetCore/JsonApiDotNetCore.csproj
@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <VersionPrefix>2.3.0</VersionPrefix>
+    <VersionPrefix>2.3.1</VersionPrefix>
     <TargetFrameworks>$(NetStandardVersion)</TargetFrameworks>
     <AssemblyName>JsonApiDotNetCore</AssemblyName>
     <PackageId>JsonApiDotNetCore</PackageId>
diff --git a/src/JsonApiDotNetCore/Models/AttrAttribute.cs b/src/JsonApiDotNetCore/Models/AttrAttribute.cs
index e38b47abec..f63d48ab70 100644
--- a/src/JsonApiDotNetCore/Models/AttrAttribute.cs
+++ b/src/JsonApiDotNetCore/Models/AttrAttribute.cs
@@ -33,7 +33,7 @@ public AttrAttribute(string publicName, bool isImmutable = false, bool isFiltera
             IsSortable = isSortable;
         }
 
-        internal AttrAttribute(string publicName, string internalName, bool isImmutable = false)
+        public AttrAttribute(string publicName, string internalName, bool isImmutable = false)
         {
             PublicAttributeName = publicName;
             InternalAttributeName = internalName;