diff --git a/Chickensoft.Serialization/Chickensoft.Serialization.csproj b/Chickensoft.Serialization/Chickensoft.Serialization.csproj
index f90c933..b14051c 100644
--- a/Chickensoft.Serialization/Chickensoft.Serialization.csproj
+++ b/Chickensoft.Serialization/Chickensoft.Serialization.csproj
@@ -51,7 +51,7 @@
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>
     <PackageReference Include="Chickensoft.Collections" Version="1.8.9" />
-    <PackageReference Include="System.Text.Json" Version="8.0.4" />
+    <PackageReference Include="System.Text.Json" Version="9.0.0-rc.1.24431.7" />
     <PackageReference Include="Chickensoft.Introspection" Version="1.7.0" />
     <PackageReference Include="PolyKit" Version="3.0.9" />
   </ItemGroup>
diff --git a/global.json b/global.json
index f88a03a..5da8eeb 100644
--- a/global.json
+++ b/global.json
@@ -1,6 +1,6 @@
 {
   "sdk": {
-    "version": "8.0.401",
+    "version": "9.0.100-rc.1.24452.12",
     "rollForward": "latestMinor"
   },
   "msbuild-sdks": {