diff --git a/Dockerfile b/Dockerfile
index 585571c..d832d5b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM mcr.microsoft.com/dotnet/sdk:8.0
+FROM mcr.microsoft.com/dotnet/sdk:9.0@sha256:84fd557bebc64015e731aca1085b92c7619e49bdbe247e57392a43d92276f617
 WORKDIR /scip-dotnet
 ADD . /scip-dotnet
 RUN dotnet pack
diff --git a/ScipDotnet/ScipDotnet.csproj b/ScipDotnet/ScipDotnet.csproj
index 92a0c20..ccb736b 100644
--- a/ScipDotnet/ScipDotnet.csproj
+++ b/ScipDotnet/ScipDotnet.csproj
@@ -26,7 +26,7 @@
     <PackageReference Include="Microsoft.CodeAnalysis.Workspaces.MSBuild" Version="4.4.0" />
     <PackageReference Include="System.CommandLine" Version="2.0.0-beta4.22272.1" />
     <PackageReference Include="System.CommandLine.Hosting" Version="0.4.0-alpha.22272.1" />
-    <PackageReference Include="System.Configuration.ConfigurationManager" Version="7.0.0" />
+    <PackageReference Include="System.Configuration.ConfigurationManager" Version="9.0.1" />
   </ItemGroup>
 
 </Project>
\ No newline at end of file