diff --git a/Benchmarks/Benchmarks.csproj b/Benchmarks/Benchmarks.csproj
index 1c2c9f4..7c174f6 100644
--- a/Benchmarks/Benchmarks.csproj
+++ b/Benchmarks/Benchmarks.csproj
@@ -15,7 +15,7 @@
 
   <ItemGroup>
     <PackageReference Include="Apex.Runtime" Version="3.0.0" />
-    <PackageReference Include="Apex.Serialization" Version="4.0.2" />
+    <PackageReference Include="Apex.Serialization" Version="4.0.3" />
     <PackageReference Include="BenchmarkDotNet" Version="0.13.1" />
     <PackageReference Include="BenchmarkDotNet.Diagnostics.Windows" Version="0.13.1" />
     <PackageReference Include="ImmutableTrie" Version="1.0.0-alpha" />