diff --git a/.config/dotnet-tools.json b/.config/dotnet-tools.json
index e7096cd..1d26424 100644
--- a/.config/dotnet-tools.json
+++ b/.config/dotnet-tools.json
@@ -3,7 +3,7 @@
   "isRoot": true,
   "tools": {
     "dotnet-sonarscanner": {
-      "version": "9.0.2",
+      "version": "9.1.0",
       "commands": [
         "dotnet-sonarscanner"
       ],
@@ -17,4 +17,4 @@
       "rollForward": false
     }
   }
-}
+}
\ No newline at end of file
diff --git a/src/TestableHttpClient/TestableHttpClient.csproj b/src/TestableHttpClient/TestableHttpClient.csproj
index 37d22ba..c60e69f 100644
--- a/src/TestableHttpClient/TestableHttpClient.csproj
+++ b/src/TestableHttpClient/TestableHttpClient.csproj
@@ -33,8 +33,8 @@
 
   <ItemGroup Condition="'$(TargetFramework)' == 'netstandard2.0'">
     <PackageReference Include="System.Net.Http" Version="4.3.4" />
-    <PackageReference Include="System.Text.Json" Version="4.7.2" />
-    <PackageReference Include="System.Text.Encodings.Web" Version="4.7.2" />
+    <PackageReference Include="System.Text.Json" Version="9.0.2" />
+    <PackageReference Include="System.Text.Encodings.Web" Version="9.0.2" />
     <PackageReference Include="Perfors.UnreachableException" Version="1.0.0" />
     <PackageReference Include="PolyKit.Embedded" Version="3.0.9" />
   </ItemGroup>
diff --git a/test/Directory.Build.targets b/test/Directory.Build.targets
index 6348ff4..bc29037 100644
--- a/test/Directory.Build.targets
+++ b/test/Directory.Build.targets
@@ -6,7 +6,7 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="coverlet.collector" Version="6.0.3">
+    <PackageReference Include="coverlet.collector" Version="6.0.4">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
diff --git a/test/TestableHttpClient.Tests/TestableHttpClient.Tests.csproj b/test/TestableHttpClient.Tests/TestableHttpClient.Tests.csproj
index c501d52..860edda 100644
--- a/test/TestableHttpClient.Tests/TestableHttpClient.Tests.csproj
+++ b/test/TestableHttpClient.Tests/TestableHttpClient.Tests.csproj
@@ -6,7 +6,7 @@
   </PropertyGroup>
 
   <ItemGroup Condition="'$(TargetFrameworkIdentifier)' == '.NETFramework'">
-    <PackageReference Include="System.Net.Http.Json" Version="8.0.1" />
+    <PackageReference Include="System.Net.Http.Json" Version="9.0.2" />
   </ItemGroup>
 
   <ItemGroup>