diff --git a/src/InterfaceStubGenerator.Roslyn38/InterfaceStubGenerator.Roslyn38.csproj b/src/InterfaceStubGenerator.Roslyn38/InterfaceStubGenerator.Roslyn38.csproj
index dc7c53a00..606ad6df0 100644
--- a/src/InterfaceStubGenerator.Roslyn38/InterfaceStubGenerator.Roslyn38.csproj
+++ b/src/InterfaceStubGenerator.Roslyn38/InterfaceStubGenerator.Roslyn38.csproj
@@ -9,7 +9,7 @@
     <SignAssembly>true</SignAssembly>
     <IsRoslynComponent>true</IsRoslynComponent>
     <Nullable>enable</Nullable>
-    <MsCACSharpVersion>3.8.0</MsCACSharpVersion>
+    <MsCACSharpVersion>3.11.0</MsCACSharpVersion>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
   </PropertyGroup>
 
diff --git a/src/InterfaceStubGenerator.Roslyn41/InterfaceStubGenerator.Roslyn41.csproj b/src/InterfaceStubGenerator.Roslyn41/InterfaceStubGenerator.Roslyn41.csproj
index cc7ff2c90..2f91f1860 100644
--- a/src/InterfaceStubGenerator.Roslyn41/InterfaceStubGenerator.Roslyn41.csproj
+++ b/src/InterfaceStubGenerator.Roslyn41/InterfaceStubGenerator.Roslyn41.csproj
@@ -10,7 +10,7 @@
     <IsRoslynComponent>true</IsRoslynComponent>
     <Nullable>enable</Nullable>
     <DefineConstants>$(DefineConstants);ROSLYN_4</DefineConstants>
-    <MsCACSharpVersion>4.1.0</MsCACSharpVersion>
+    <MsCACSharpVersion>4.14.0</MsCACSharpVersion>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
   </PropertyGroup>
 
diff --git a/src/InterfaceStubGenerator.Roslyn50/InterfaceStubGenerator.Roslyn50.csproj b/src/InterfaceStubGenerator.Roslyn50/InterfaceStubGenerator.Roslyn50.csproj
index 39381ca1e..4d6bfe153 100644
--- a/src/InterfaceStubGenerator.Roslyn50/InterfaceStubGenerator.Roslyn50.csproj
+++ b/src/InterfaceStubGenerator.Roslyn50/InterfaceStubGenerator.Roslyn50.csproj
@@ -10,7 +10,7 @@
     <IsRoslynComponent>true</IsRoslynComponent>
     <Nullable>enable</Nullable>
     <DefineConstants>$(DefineConstants);ROSLYN_4;ROSLYN_5</DefineConstants>
-    <MsCACSharpVersion>5.0.0</MsCACSharpVersion>
+    <MsCACSharpVersion>5.3.0</MsCACSharpVersion>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <EnforceExtendedAnalyzerRules>true</EnforceExtendedAnalyzerRules>
   </PropertyGroup>
diff --git a/src/Refit.Benchmarks/Refit.Benchmarks.csproj b/src/Refit.Benchmarks/Refit.Benchmarks.csproj
index 884a15d19..1881363bb 100644
--- a/src/Refit.Benchmarks/Refit.Benchmarks.csproj
+++ b/src/Refit.Benchmarks/Refit.Benchmarks.csproj
@@ -22,7 +22,7 @@
       <PackageReference Include="System.Text.RegularExpressions" Version="4.3.1" />
       <PackageReference Include="AutoFixture" Version="4.18.1" />
       <PackageReference Include="BenchmarkDotNet" Version="0.14.0" />
-      <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.12.0-3.24523.4" />
+      <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.14.0" />
     </ItemGroup>
 
     <ItemGroup>
diff --git a/src/Refit.GeneratorTests/Refit.GeneratorTests.csproj b/src/Refit.GeneratorTests/Refit.GeneratorTests.csproj
index 05747ea72..cce7a64ca 100644
--- a/src/Refit.GeneratorTests/Refit.GeneratorTests.csproj
+++ b/src/Refit.GeneratorTests/Refit.GeneratorTests.csproj
@@ -30,7 +30,7 @@
     <PackageReference Include="Verify.SourceGenerators" Version="2.5.0" />
     <PackageReference Include="Verify.TUnit" Version="31.16.3" />
     <PackageReference Include="System.Reactive" Version="6.1.0" />
-    <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.11.0" />
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.14.0" />
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp.SourceGenerators.Testing" Version="1.1.3" />
     <ProjectReference Include="..\Refit.Newtonsoft.Json\Refit.Newtonsoft.Json.csproj" />
     <ProjectReference Include="..\Refit.Xml\Refit.Xml.csproj" />
diff --git a/src/Refit.Tests/Refit.Tests.csproj b/src/Refit.Tests/Refit.Tests.csproj
index 6e828ca98..8ca8c7941 100644
--- a/src/Refit.Tests/Refit.Tests.csproj
+++ b/src/Refit.Tests/Refit.Tests.csproj
@@ -42,7 +42,7 @@
     <PackageReference Include="System.Formats.Asn1" Version="9.0.15" />
     <PackageReference Include="TUnit" Version="1.44.39" />
     <PackageReference Include="System.Reactive" Version="6.1.0" />
-    <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.11.0" />
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.14.0" />
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp.SourceGenerators.Testing" Version="1.1.3" />
     <PackageReference Include="RichardSzalay.MockHttp" Version="$(MockHttpVersion)" />
     <PackageReference Include="Verify.DiffPlex" Version="3.1.2" />