diff --git a/.github/workflows/dotnet-migrations-ensure-compatibility.yaml b/.github/workflows/dotnet-migrations-ensure-compatibility.yaml
index ce5dc94fa09..1ceea0f0d55 100644
--- a/.github/workflows/dotnet-migrations-ensure-compatibility.yaml
+++ b/.github/workflows/dotnet-migrations-ensure-compatibility.yaml
@@ -26,7 +26,7 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Install dotnet ef # Version should be the same as Migrations docker file and project
-        run: dotnet tool install --version 8.0.7 --global dotnet-ef
+        run: dotnet tool install --version 9.0.0 --global dotnet-ef
 
       - name: Check if migrations script can be generated
         run: |
diff --git a/backend/Migrations.Dockerfile b/backend/Migrations.Dockerfile
index 6523121e42b..09569daacc0 100644
--- a/backend/Migrations.Dockerfile
+++ b/backend/Migrations.Dockerfile
@@ -4,7 +4,7 @@ WORKDIR /app
 
 COPY . .
 
-RUN dotnet tool install --version 8.0.7 --global dotnet-ef
+RUN dotnet tool install --version 9.0.0 --global dotnet-ef
 ENV PATH="$PATH:/root/.dotnet/tools"
 
 ENV OidcLoginSettings__FetchClientIdAndSecretFromRootEnvFile=false
diff --git a/backend/packagegroups/NuGet.props b/backend/packagegroups/NuGet.props
index 389193bbd30..7aa6307c86f 100644
--- a/backend/packagegroups/NuGet.props
+++ b/backend/packagegroups/NuGet.props
@@ -29,8 +29,8 @@
     <PackageReference Update="Microsoft.AspNetCore.OpenApi" Version="9.0.0" />
     <PackageReference Update="HtmlAgilityPack" Version="1.11.67" />
     <PackageReference Update="Microsoft.DiaSymReader.Native" Version="1.7.0" />
-    <PackageReference Update="Npgsql.EntityFrameworkCore.PostgreSQL" Version="8.0.8" />
-    <PackageReference Update="Microsoft.EntityFrameworkCore.Tools" Version="8.0.10" />
+    <PackageReference Update="Npgsql.EntityFrameworkCore.PostgreSQL" Version="9.0.1" />
+    <PackageReference Update="Microsoft.EntityFrameworkCore.Tools" Version="9.0.0" />
     <PackageReference Update="Microsoft.FeatureManagement.AspNetCore" Version="3.5.0" />
     <PackageReference Update="Scrutor" Version="4.2.2" />
     <PackageReference Update="Polly" Version="8.4.2" />
diff --git a/backend/src/Designer/Designer.csproj b/backend/src/Designer/Designer.csproj
index 341117518d1..c52469b77f6 100644
--- a/backend/src/Designer/Designer.csproj
+++ b/backend/src/Designer/Designer.csproj
@@ -14,10 +14,6 @@
     <Configurations>Release;Debug</Configurations>
   </PropertyGroup>
 
-  <PropertyGroup>
-    <CodeAnalisysCompatibleVersion>4.5.0</CodeAnalisysCompatibleVersion>
-  </PropertyGroup>
-
   <ItemGroup>
     <PackageReference Include="Altinn.App.Core" />
     <PackageReference Include="Altinn.Authorization.ABAC" />
@@ -59,8 +55,6 @@
     <PackageReference Include="NuGet.Versioning" />
     <PackageReference Include="Polly" />
     <PackageReference Include="Scrutor" />
-    <PackageReference Include="Microsoft.CodeAnalysis.Workspaces.Common" Version="$(CodeAnalisysCompatibleVersion)" />
-    <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Features" Version="$(CodeAnalisysCompatibleVersion)" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/backend/tests/Designer.Tests/Designer.Tests.csproj b/backend/tests/Designer.Tests/Designer.Tests.csproj
index daf49e71bcd..3598a50a8dd 100644
--- a/backend/tests/Designer.Tests/Designer.Tests.csproj
+++ b/backend/tests/Designer.Tests/Designer.Tests.csproj
@@ -10,10 +10,6 @@
     <TestRepoPrefix>test-repo-</TestRepoPrefix>
   </PropertyGroup>
 
-  <PropertyGroup>
-    <CodeAnalisysCompatibleVersion>4.5.0</CodeAnalisysCompatibleVersion>
-  </PropertyGroup>
-
   <ItemGroup>
     <PackageReference Include="Altinn.ApiClients.Maskinporten" />
     <PackageReference Include="Basic.Reference.Assemblies" />
@@ -37,9 +33,6 @@
     </PackageReference>
     <PackageReference Include="Microsoft.Extensions.DependencyModel" />
     <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" />
-    <PackageReference Include="Microsoft.CodeAnalysis.Workspaces.Common" Version="$(CodeAnalisysCompatibleVersion)" />
-    <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Features" Version="$(CodeAnalisysCompatibleVersion)" />
-    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="$(CodeAnalisysCompatibleVersion)" />
   </ItemGroup>
 
   <ItemGroup>