diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 0acc820be842..936783cb8a99 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -26,7 +26,7 @@ build:
   script:
     - if (Test-Path build-out) { remove-item -recurse -force build-out }
     - if (Test-Path artifacts-out) { remove-item -recurse -force artifacts-out }
-    - docker run --rm -m 8192M -v "$(Get-Location):c:\mnt" -e CI_JOB_ID=${CI_JOB_ID} -e ENABLE_MULTIPROCESSOR_COMPILATION=false -e WINDOWS_BUILDER=true -e AWS_NETWORKING=true -e SIGN_WINDOWS=true -e NUGET_CERT_REVOCATION_MODE=offline datadog/dd-trace-dotnet-docker-build:dotnet9
+    - docker run --rm -m 8192M -v "$(Get-Location):c:\mnt" -e CI_JOB_ID=${CI_JOB_ID} -e ENABLE_MULTIPROCESSOR_COMPILATION=false -e WINDOWS_BUILDER=true -e AWS_NETWORKING=true -e SIGN_WINDOWS=true -e NUGET_CERT_REVOCATION_MODE=offline registry.ddbuild.io/images/mirror/datadog/dd-trace-dotnet-docker-build:latest
     - mkdir artifacts-out
     - xcopy /e/s build-out\${CI_JOB_ID}\*.* artifacts-out
     - remove-item -recurse -force build-out\${CI_JOB_ID}
diff --git a/tracer/build/_build/docker/gitlab/gitlab.windows.dockerfile b/tracer/build/_build/docker/gitlab/gitlab.windows.dockerfile
index c9f9a1e50b8d..5531904c073f 100644
--- a/tracer/build/_build/docker/gitlab/gitlab.windows.dockerfile
+++ b/tracer/build/_build/docker/gitlab/gitlab.windows.dockerfile
@@ -1,6 +1,6 @@
 # To build this file locally, starting from the root directory:
 # cd tracer/build/_build/docker/gitlab
-# docker build -f gitlab.windows.dockerfile --tag datadog/dd-trace-dotnet-docker-build:dotnet9 .
+# docker build -f gitlab.windows.dockerfile --tag datadog/dd-trace-dotnet-docker-build:latest .
 # docker push datadog/dd-trace-dotnet-docker-build:latest
 
 ARG BASE_IMAGE=mcr.microsoft.com/dotnet/framework/runtime:4.8-windowsservercore-ltsc2019
@@ -30,9 +30,9 @@ RUN powershell -Command .\install_wix.ps1 -Version $ENV:WIX_VERSION -Sha256 $ENV
 
 # Install .NET 9
 # To find these links, visit https://dotnet.microsoft.com/en-us/download, click the Windows, x64 installer, and grab the download url + SHA512 hash
-ENV DOTNET_VERSION="9.0.100-rc.2.24474.11" \
-    DOTNET_DOWNLOAD_URL="https://download.visualstudio.microsoft.com/download/pr/084bfbb9-6197-49d9-ae9c-ad3825534f37/e1a071d344c9b24849f8034f7ce72aa6/dotnet-sdk-9.0.100-rc.2.24474.11-win-x64.exe" \
-    DOTNET_SHA512="29091a2b4d08f7fdc77065f2805a82afae0129a6b886caec71124016843a29c6abcec828794aef1c9a73a84df3f7b7258863991f61a780ea362575da0ca6879b"
+ENV DOTNET_VERSION="9.0.100" \
+    DOTNET_DOWNLOAD_URL="https://download.visualstudio.microsoft.com/download/pr/10bb041d-e705-473e-9654-27c0e038f5bd/447c0c10654c2949872fa6154b8c27b5/dotnet-sdk-9.0.100-win-x64.exe" \
+    DOTNET_SHA512="a12ee028f7dff8f330dbe1914534d237eb6e19cc105139ce5de69df1b4b07ee3c1a3e396574ca776a452e805052e799df14a348ace50191af514c9dc4705ecf0"
 
 COPY install_dotnet.ps1 .
 RUN powershell -Command .\install_dotnet.ps1  -Version $ENV:DOTNET_VERSION -Sha512 $ENV:DOTNET_SHA512 $ENV:DOTNET_DOWNLOAD_URL
diff --git a/tracer/test/Datadog.Trace.ClrProfiler.IntegrationTests/AppTrimmingTests.cs b/tracer/test/Datadog.Trace.ClrProfiler.IntegrationTests/AppTrimmingTests.cs
index 300d378f9240..e31ca7814693 100644
--- a/tracer/test/Datadog.Trace.ClrProfiler.IntegrationTests/AppTrimmingTests.cs
+++ b/tracer/test/Datadog.Trace.ClrProfiler.IntegrationTests/AppTrimmingTests.cs
@@ -25,13 +25,6 @@ public AppTrimmingTests(ITestOutputHelper output)
     [SkippableFact]
     public async Task TrimmerTest()
     {
-        // FIXME: .NET 9 RC2 fails weirdly only on this combination
-        // I have a theory it's tied to the fact we're using MVC in our trimming app
-        // which I don't believe is officially supported for trimming, so we should
-        // probably migrate that, but going to do that separately.
-#if NET9_0
-        SkipOn.PlatformAndArchitecture(SkipOn.PlatformValue.Linux, SkipOn.ArchitectureValue.ARM64);
-#endif
         var httpPort = TcpPortProvider.GetOpenPort();
         Output.WriteLine($"Assigning port {httpPort} for the httpPort.");