diff --git a/src/Argon/Serialization/DefaultContractResolver.cs b/src/Argon/Serialization/DefaultContractResolver.cs
index 57e758bd..37d34085 100644
--- a/src/Argon/Serialization/DefaultContractResolver.cs
+++ b/src/Argon/Serialization/DefaultContractResolver.cs
@@ -28,10 +28,10 @@ public class DefaultContractResolver : IContractResolver
     /// </summary>
     public NamingStrategy? NamingStrategy { get; set; }
 
-    // read-only: these built-in converters are read (unsynchronized) during contract creation on
-    // arbitrary threads, so the collection must not be publicly mutable. Backed by an array so the
-    // internal GetMatchingConverter (which takes IList) can still consume it without a copy.
-    static readonly JsonConverter[] builtInConverters =
+    // these built-in converters are read (unsynchronized) during contract creation on arbitrary
+    // threads. Exposed as a List for binary compatibility; the internal GetMatchingConverter (which
+    // takes IList) consumes it directly without a copy.
+    static readonly List<JsonConverter> builtInConverters =
         [
         new StringBuilderConverter(),
         new ExpandoObjectConverter(),
@@ -45,7 +45,7 @@ public class DefaultContractResolver : IContractResolver
         new StringWriterConverter()
         ];
 
-    public static IReadOnlyList<JsonConverter> Converters => builtInConverters;
+    public static List<JsonConverter> Converters => builtInConverters;
 
     /// <summary>
     /// Initializes a new instance of the <see cref="DefaultContractResolver" /> class.
diff --git a/src/Directory.Build.props b/src/Directory.Build.props
index e2735a28..af5e4425 100644
--- a/src/Directory.Build.props
+++ b/src/Directory.Build.props
@@ -2,7 +2,7 @@
   <PropertyGroup>
     <NoWarn>CS1591;CS1573;NU1605;NU1608;NU1109</NoWarn>
     <LangVersion>preview</LangVersion>
-    <Version>0.35.1</Version>
+    <Version>0.35.2</Version>
     <AssemblyVersion>1.0.0</AssemblyVersion>
     <Copyright>Copyright © James Newton-King 2008, Copyright © Simon Cropp 2022</Copyright>
     <PackageTags>Json</PackageTags>