diff --git a/performance/resultsComparer/resultsComparer.csproj b/performance/resultsComparer/resultsComparer.csproj
index 6a85023cc..aee9607c9 100644
--- a/performance/resultsComparer/resultsComparer.csproj
+++ b/performance/resultsComparer/resultsComparer.csproj
@@ -13,7 +13,7 @@
     <PackageReference Include="Microsoft.Extensions.Logging.Console" Version="9.0.10" />
     <PackageReference Include="Microsoft.Extensions.Logging.Debug" Version="10.0.0" />
     <PackageReference Include="System.CommandLine" Version="2.0.0-beta5.25306.1" />
-    <PackageReference Include="system.text.json" Version="9.0.10" />
+    <PackageReference Include="system.text.json" Version="10.0.0" />
   </ItemGroup>
 
 </Project>
diff --git a/test/Microsoft.OpenApi.Readers.Tests/Microsoft.OpenApi.Readers.Tests.csproj b/test/Microsoft.OpenApi.Readers.Tests/Microsoft.OpenApi.Readers.Tests.csproj
index 2cad1eba3..d1d237681 100644
--- a/test/Microsoft.OpenApi.Readers.Tests/Microsoft.OpenApi.Readers.Tests.csproj
+++ b/test/Microsoft.OpenApi.Readers.Tests/Microsoft.OpenApi.Readers.Tests.csproj
@@ -19,7 +19,7 @@
         <PackageReference Include="coverlet.msbuild" Version="6.0.4" PrivateAssets="all" />
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.0.1" />
         <PackageReference Include="FluentAssertions" Version="7.2.0" />
-        <PackageReference Include="system.text.json" Version="9.0.10" />
+        <PackageReference Include="system.text.json" Version="10.0.0" />
         <PackageReference Include="xunit" Version="2.9.3" />
         <PackageReference Include="xunit.runner.visualstudio" Version="3.1.5" PrivateAssets="all" />
     </ItemGroup>
diff --git a/test/Microsoft.OpenApi.Tests/Microsoft.OpenApi.Tests.csproj b/test/Microsoft.OpenApi.Tests/Microsoft.OpenApi.Tests.csproj
index 4e18c7dab..aac7c907f 100644
--- a/test/Microsoft.OpenApi.Tests/Microsoft.OpenApi.Tests.csproj
+++ b/test/Microsoft.OpenApi.Tests/Microsoft.OpenApi.Tests.csproj
@@ -13,7 +13,7 @@
     <PackageReference Include="FluentAssertions" Version="7.2.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.0.1" />
     <PackageReference Include="Moq" Version="4.20.72" />
-    <PackageReference Include="System.Text.Json" Version="9.0.10" />
+    <PackageReference Include="System.Text.Json" Version="10.0.0" />
     <PackageReference Include="Verify.Xunit" Version="31.0.1" />
     <PackageReference Include="xunit" Version="2.9.3" />
     <PackageReference Include="xunit.runner.visualstudio" Version="3.1.5" PrivateAssets="all" />