diff --git a/.gitlab/dockerfiles/Dockerfile.windows b/.gitlab/dockerfiles/Dockerfile.windows
deleted file mode 100644
index 064e5266..00000000
--- a/.gitlab/dockerfiles/Dockerfile.windows
+++ /dev/null
@@ -1,10 +0,0 @@
-FROM mcr.microsoft.com/windows/servercore:ltsc2022
-
-SHELL ["powershell", "-Command"]
-
-# download and install vs build tools needed by vcpkg
-RUN Invoke-WebRequest "https://aka.ms/vs/17/release/vs_buildtools.exe" \
-    -OutFile "%TEMP%\vs_buildtools.exe" -UseBasicParsing
-RUN "%TEMP%\vs_buildtools.exe"  --quiet --wait --norestart --noUpdateInstaller \
-    --add Microsoft.VisualStudio.Workload.VCTools \
-    --includeRecommended
diff --git a/.gitlab/pipeline/build-windows.yml b/.gitlab/pipeline/build-windows.yml
index c99180f5..14c22459 100644
--- a/.gitlab/pipeline/build-windows.yml
+++ b/.gitlab/pipeline/build-windows.yml
@@ -1,7 +1,7 @@
 build:windows:
   stage: build
   tags:
-    - windows
+    - saas-windows-medium-amd64
   rules:
     # on default branch
     - if: $CI_COMMIT_REF_NAME == $CI_DEFAULT_BRANCH
@@ -15,13 +15,8 @@ build:windows:
     - Start-Service -Name "docker"
     - docker login -u $CI_REGISTRY_USER -p $CI_REGISTRY_PASSWORD $CI_REGISTRY
   script:
-    - docker build
-      --pull
-      --cache-from $CI_REGISTRY_IMAGE:latest
-      --tag $CI_REGISTRY_IMAGE:windows_$CI_COMMIT_SHA
-      -f .gitlab\dockerfiles\Dockerfile.windows
-      .
-    - docker push $CI_REGISTRY_IMAGE:windows_$CI_COMMIT_SHA
+    - docker build --tag foo -f Dockerfile.windows .
+    - docker push foo
   after_script:
     - docker logout $CI_REGISTRY
 
diff --git a/Dockerfile.windows b/Dockerfile.windows
new file mode 100644
index 00000000..007fb015
--- /dev/null
+++ b/Dockerfile.windows
@@ -0,0 +1,20 @@
+FROM mcr.microsoft.com/windows/servercore:ltsc2022
+
+SHELL ["powershell", "-Command"]
+
+# download and install vs build tools needed by vcpkg
+RUN Invoke-WebRequest "https://aka.ms/vs/17/release/vs_buildtools.exe" \
+    -OutFile "%TEMP%\vs_buildtools.exe" -UseBasicParsing
+RUN "%TEMP%\vs_buildtools.exe"  --quiet --wait --norestart --noUpdateInstaller \
+    --add Microsoft.VisualStudio.Workload.VCTools \
+    --includeRecommended
+
+# install vcpkg
+RUN $Env:VCPKG_INSTALL_DIR = "c:\\vcpkg"
+RUN git clone https://github.com/microsoft/vcpkg $Env:VCPKG_INSTALL_DIR && \
+    cd $Env:VCPKG_INSTALL_DIR && \
+    bootstrap-vcpkg.bat
+RUN vcpkg install cgal boost-program-options boost-timer boost-test
+
+# build sfcgal
+- cmake -S . -B build -DCMAKE_BUILD_TYPE=Release -DSFCGAL_BUILD_TESTS=OFF -DCMAKE_TOOLCHAIN_FILE="$Env:VCPKG_INSTALL_DIR\scripts\buildsystems\vcpkg.cmake"