diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e86c43f1..fba76dd8 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,6 +15,10 @@ jobs:
         include:
           - os: windows-latest
             checkTarget: true
+            # We want to use one version for most things and this latest for
+            # others. This is an ok way to test both without requiring a
+            # separate matrix permutation.
+            dotNetVersionOverride: 8.x
           - os: ubuntu-latest
             docsTarget: true
             cloudTestTarget: true
@@ -44,7 +48,7 @@ jobs:
         with:
           # Specific .NET version required because GitHub macos ARM image has
           # bad pre-installed .NET version
-          dotnet-version: 6.x
+          dotnet-version: ${{ matrix.dotNetVersionOverride || '6.x' }}
 
       - name: Install protoc
         uses: arduino/setup-protoc@v3
diff --git a/src/Temporalio/Temporalio.csproj b/src/Temporalio/Temporalio.csproj
index 1eb5023c..163a0e08 100644
--- a/src/Temporalio/Temporalio.csproj
+++ b/src/Temporalio/Temporalio.csproj
@@ -20,7 +20,7 @@
 
   <ItemGroup Condition="'$(TargetFramework)' == 'net462' Or '$(TargetFramework)' == 'netstandard2.0'">
     <PackageReference Include="Microsoft.Bcl.HashCode" Version="1.1.1" />
-    <PackageReference Include="System.Text.Json" Version="8.0.4" />
+    <PackageReference Include="System.Text.Json" Version="8.0.5" />
   </ItemGroup>
 
   <!-- Allow tests to use internals -->