diff --git a/.github/workflows/ci-pixi.yml b/.github/workflows/ci-pixi.yml
index 4b8ebc2..f96ce05 100644
--- a/.github/workflows/ci-pixi.yml
+++ b/.github/workflows/ci-pixi.yml
@@ -11,7 +11,7 @@ jobs:
       fail-fast: false
       matrix:
         os: ["windows-2022", "macos-latest"]
-        python-version: ["3.10", "3.11", "3.12", "3.13"]
+        environment: [py310, py311, py312, py313]
     defaults:
       run:
         shell: bash -l {0}
@@ -21,12 +21,13 @@ jobs:
       with:
         pixi-version: v0.26.1
         cache: false
+        environments: ${{ matrix.environment }}
     - name: Install
       run: |
         pixi run install-editable
         pixi run pip install plugins/fluidfft-fftw -v --no-build-isolation --no-deps
-        ls .pixi/envs/default/Lib/site-packages/fluidfft_fftw/fft2d
         pixi run python -c "import fluidfft_fftw.fft2d as m; print(m)"
+        ls .pixi/envs/default/Lib/site-packages/fluidfft_fftw/fft2d
         pixi run python -c "import fluidfft_fftw.fft2d.with_fftw1d"
         pixi run python -c "import fluidfft_fftw.fft2d.with_fftw2d"
         pixi run python -c "import fluidfft_fftw.fft3d.with_fftw3d"
diff --git a/pixi.lock b/pixi.lock
index 05ac2ef..9215526 100644
--- a/pixi.lock
+++ b/pixi.lock
@@ -482,9 +482,9 @@ environments:
       - conda: https://conda.anaconda.org/conda-forge/win-64/cairo-1.18.0-h32b962e_3.conda
       - conda: https://conda.anaconda.org/conda-forge/noarch/certifi-2024.8.30-pyhd8ed1ab_0.conda
       - conda: https://conda.anaconda.org/conda-forge/win-64/charls-2.4.2-h1537add_0.conda
-      - conda: https://conda.anaconda.org/conda-forge/win-64/clang-19-19.1.3-default_hec7ea82_0.conda
-      - conda: https://conda.anaconda.org/conda-forge/win-64/clang-19.1.3-default_hec7ea82_0.conda
-      - conda: https://conda.anaconda.org/conda-forge/win-64/clangxx-19.1.3-default_hec7ea82_0.conda
+      - conda: https://conda.anaconda.org/conda-forge/win-64/clang-18-18.1.8-default_hec7ea82_5.conda
+      - conda: https://conda.anaconda.org/conda-forge/win-64/clang-18.1.8-default_hec978fc_5.conda
+      - conda: https://conda.anaconda.org/conda-forge/win-64/clangxx-18.1.8-default_hf03c572_5.conda
       - conda: https://conda.anaconda.org/conda-forge/noarch/colorama-0.4.6-pyhd8ed1ab_0.tar.bz2
       - conda: https://conda.anaconda.org/conda-forge/noarch/colorlog-6.9.0-pyh7428d3b_0.conda
       - conda: https://conda.anaconda.org/conda-forge/win-64/contourpy-1.3.0-py312hd5eb7cc_2.conda
@@ -1470,6 +1470,24 @@ packages:
   purls: []
   size: 138062
   timestamp: 1684263362836
+- kind: conda
+  name: clang
+  version: 18.1.8
+  build: default_hec978fc_5
+  build_number: 5
+  subdir: win-64
+  url: https://conda.anaconda.org/conda-forge/win-64/clang-18.1.8-default_hec978fc_5.conda
+  sha256: e709033f0c6964eaf6f11a036555e1a61be473f8e09da373c1cbfa2cefda32ab
+  md5: 5f2b0995bf4c4eec5c37755f02442b6d
+  depends:
+  - clang-18 18.1.8 default_hec7ea82_5
+  - libzlib >=1.3.1,<2.0a0
+  - zstd >=1.5.6,<1.6.0a0
+  license: Apache-2.0 WITH LLVM-exception
+  license_family: Apache
+  purls: []
+  size: 97468084
+  timestamp: 1726915145347
 - kind: conda
   name: clang
   version: 19.1.3
@@ -1486,33 +1504,14 @@ packages:
   size: 23604
   timestamp: 1730331904506
 - kind: conda
-  name: clang
-  version: 19.1.3
-  build: default_hec7ea82_0
-  subdir: win-64
-  url: https://conda.anaconda.org/conda-forge/win-64/clang-19.1.3-default_hec7ea82_0.conda
-  sha256: 56a6693c053df4d8a8ea18a2171bd994dfeef3a95841c8335b3fa76c94b83585
-  md5: 74ce0a43f268322d25e9a6509f7a22ac
-  depends:
-  - clang-19 19.1.3 default_hec7ea82_0
-  - libzlib >=1.3.1,<2.0a0
-  - ucrt >=10.0.20348.0
-  - vc >=14.2,<15
-  - vc14_runtime >=14.29.30139
-  - zstd >=1.5.6,<1.6.0a0
-  license: Apache-2.0 WITH LLVM-exception
-  license_family: Apache
-  purls: []
-  size: 102383995
-  timestamp: 1730355287798
-- kind: conda
-  name: clang-19
-  version: 19.1.3
-  build: default_hec7ea82_0
+  name: clang-18
+  version: 18.1.8
+  build: default_hec7ea82_5
+  build_number: 5
   subdir: win-64
-  url: https://conda.anaconda.org/conda-forge/win-64/clang-19-19.1.3-default_hec7ea82_0.conda
-  sha256: 86797215133ddf36ec2b3f2eb88baf6844a8b3e6b367b5a0e3cbd099bb0baa2b
-  md5: 51aeea3e1295e4985caa26e53e48348d
+  url: https://conda.anaconda.org/conda-forge/win-64/clang-18-18.1.8-default_hec7ea82_5.conda
+  sha256: 7433ecfd1c91d8090523c725f1ee0b9d7f5168c4fc12715f97c8ef5931accd52
+  md5: a34c300a63709a286e3d38ac9c4f6608
   depends:
   - libzlib >=1.3.1,<2.0a0
   - ucrt >=10.0.20348.0
@@ -1522,8 +1521,8 @@ packages:
   license: Apache-2.0 WITH LLVM-exception
   license_family: Apache
   purls: []
-  size: 34846925
-  timestamp: 1730355146278
+  size: 33202302
+  timestamp: 1726914870119
 - kind: conda
   name: clang-19
   version: 19.1.3
@@ -1578,6 +1577,24 @@ packages:
   purls: []
   size: 20630
   timestamp: 1730374874382
+- kind: conda
+  name: clangxx
+  version: 18.1.8
+  build: default_hf03c572_5
+  build_number: 5
+  subdir: win-64
+  url: https://conda.anaconda.org/conda-forge/win-64/clangxx-18.1.8-default_hf03c572_5.conda
+  sha256: 8da140d4d4abe27abe38fab9de1a7306fcdba6bcd613a4c1cb2e41292aa2b816
+  md5: 434215e91193a3370582c1adb340ecc3
+  depends:
+  - clang 18.1.8 default_hec978fc_5
+  - libzlib >=1.3.1,<2.0a0
+  - zstd >=1.5.6,<1.6.0a0
+  license: Apache-2.0 WITH LLVM-exception
+  license_family: Apache
+  purls: []
+  size: 32505964
+  timestamp: 1726915538666
 - kind: conda
   name: clangxx
   version: 19.1.3
@@ -1594,26 +1611,6 @@ packages:
   purls: []
   size: 23683
   timestamp: 1730331917791
-- kind: conda
-  name: clangxx
-  version: 19.1.3
-  build: default_hec7ea82_0
-  subdir: win-64
-  url: https://conda.anaconda.org/conda-forge/win-64/clangxx-19.1.3-default_hec7ea82_0.conda
-  sha256: b99173d45c871ab28942941bb4bca45548ff0c0073365407031af32168e2308f
-  md5: c2e3158fc9bffdd11e71d79bfe474739
-  depends:
-  - clang 19.1.3 default_hec7ea82_0
-  - libzlib >=1.3.1,<2.0a0
-  - ucrt >=10.0.20348.0
-  - vc >=14.2,<15
-  - vc14_runtime >=14.29.30139
-  - zstd >=1.5.6,<1.6.0a0
-  license: Apache-2.0 WITH LLVM-exception
-  license_family: Apache
-  purls: []
-  size: 34147080
-  timestamp: 1730355543302
 - kind: conda
   name: clangxx_impl_osx-64
   version: 19.1.3
diff --git a/pixi.toml b/pixi.toml
index 53f2a22..7876697 100644
--- a/pixi.toml
+++ b/pixi.toml
@@ -57,3 +57,6 @@ meson-python = ">=0.15.0,<0.17.0"
 pythran = ">=0.15.0"
 # issue on Windows?
 transonic = ">=0.6.1,=0.7.0"
+
+[target.win-64.dependencies]
+clang = "18.1.8.*"