diff --git a/FirstClassErrors.Analyzers.UnitTests/FirstClassErrors.Analyzers.UnitTests.csproj b/FirstClassErrors.Analyzers.UnitTests/FirstClassErrors.Analyzers.UnitTests.csproj
index db4a19a3..710c84f0 100644
--- a/FirstClassErrors.Analyzers.UnitTests/FirstClassErrors.Analyzers.UnitTests.csproj
+++ b/FirstClassErrors.Analyzers.UnitTests/FirstClassErrors.Analyzers.UnitTests.csproj
@@ -12,7 +12,7 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.8.0" />
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="5.6.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.7.0" />
     <PackageReference Include="NFluent" Version="3.1.0" />
     <PackageReference Include="xunit.runner.visualstudio" Version="3.1.5">
diff --git a/FirstClassErrors.Analyzers/FirstClassErrors.Analyzers.csproj b/FirstClassErrors.Analyzers/FirstClassErrors.Analyzers.csproj
index da04f255..912284c3 100644
--- a/FirstClassErrors.Analyzers/FirstClassErrors.Analyzers.csproj
+++ b/FirstClassErrors.Analyzers/FirstClassErrors.Analyzers.csproj
@@ -17,8 +17,8 @@
 
   <ItemGroup>
     <!-- Pinned to a low floor so the shipped analyzer loads in older SDKs too. Not flowed to consumers. -->
-    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.8.0" PrivateAssets="all" />
-    <PackageReference Include="Microsoft.CodeAnalysis.Analyzers" Version="3.11.0" PrivateAssets="all">
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="5.6.0" PrivateAssets="all" />
+    <PackageReference Include="Microsoft.CodeAnalysis.Analyzers" Version="5.3.0" PrivateAssets="all">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
   </ItemGroup>