diff --git a/src/cartservice/src/Dockerfile b/src/cartservice/src/Dockerfile
index bf9ebcac19..85c532e7cd 100644
--- a/src/cartservice/src/Dockerfile
+++ b/src/cartservice/src/Dockerfile
@@ -15,7 +15,7 @@
 # limitations under the License.
 
 # https://mcr.microsoft.com/v2/dotnet/sdk/tags/list
-FROM --platform=$BUILDPLATFORM mcr.microsoft.com/dotnet/sdk:8.0 AS builder
+FROM --platform=$BUILDPLATFORM mcr.microsoft.com/dotnet/sdk:9.0 AS builder
 ARG TARGETARCH
 
 WORKDIR /usr/src/app/
@@ -30,7 +30,7 @@ RUN dotnet publish ./src/cartservice.csproj -r linux-musl-$TARGETARCH --no-resto
 # -----------------------------------------------------------------------------
 
 # https://mcr.microsoft.com/v2/dotnet/runtime-deps/tags/list
-FROM mcr.microsoft.com/dotnet/runtime-deps:8.0-alpine3.20
+FROM mcr.microsoft.com/dotnet/runtime-deps:9.0-alpine3.20
 
 WORKDIR /usr/src/app/
 COPY --from=builder /cartservice/ ./
diff --git a/src/cartservice/tests/cartservice.tests.csproj b/src/cartservice/tests/cartservice.tests.csproj
index 4c7a083d85..c49c39b3a3 100644
--- a/src/cartservice/tests/cartservice.tests.csproj
+++ b/src/cartservice/tests/cartservice.tests.csproj
@@ -6,7 +6,7 @@
 
   <ItemGroup>
     <PackageReference Include="Grpc.Net.Client" Version="2.63.0" />
-    <PackageReference Include="Microsoft.AspNetCore.TestHost" Version="8.0.6" />
+    <PackageReference Include="Microsoft.AspNetCore.TestHost" Version="9.0.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.10.0" />
     <PackageReference Include="xunit" Version="2.8.1" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.8.1">