diff --git a/MaxMind.Db.SourceGenerator/MaxMind.Db.SourceGenerator.csproj b/MaxMind.Db.SourceGenerator/MaxMind.Db.SourceGenerator.csproj
index 41f37e9..3c8f811 100644
--- a/MaxMind.Db.SourceGenerator/MaxMind.Db.SourceGenerator.csproj
+++ b/MaxMind.Db.SourceGenerator/MaxMind.Db.SourceGenerator.csproj
@@ -17,8 +17,8 @@
     <!-- The lowest version providing every API this generator uses, so consumers on
          older SDKs still load the analyzer instead of hitting CS9057 and silently
          getting no registrations. IPropertySymbol.IsRequired is the newest API used. -->
-    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.4.0" PrivateAssets="all" ExcludeAssets="runtime" />
-    <PackageReference Include="Microsoft.CodeAnalysis.Analyzers" Version="3.3.4" PrivateAssets="all" ExcludeAssets="runtime" />
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="5.6.0" PrivateAssets="all" ExcludeAssets="runtime" />
+    <PackageReference Include="Microsoft.CodeAnalysis.Analyzers" Version="5.3.0" PrivateAssets="all" ExcludeAssets="runtime" />
   </ItemGroup>
 
 </Project>