diff --git a/.github/workflows/ci-judi.yml b/.github/workflows/ci-judi.yml
index 9158927c0..181b8727c 100644
--- a/.github/workflows/ci-judi.yml
+++ b/.github/workflows/ci-judi.yml
@@ -29,7 +29,13 @@ jobs:
 
       matrix:
         version: ['1.6', '1.7', '1.8', '1.9', '1.10']
-        os: [ubuntu-latest, macos-13]
+        os: [ubuntu-latest]
+        arch: ['x64']
+
+        include:
+          - os: macos-latest
+            version: '1'
+            arch: ARM64
 
     steps:
       - name: Checkout JUDI
@@ -39,7 +45,7 @@ jobs:
         uses: julia-actions/setup-julia@v1
         with:
           version: ${{ matrix.version }}
-          arch: x64
+          arch: ${{ matrix.arch }}
 
       - name: Set up Python 3.9
         uses: actions/setup-python@v4
diff --git a/.github/workflows/ci-op.yml b/.github/workflows/ci-op.yml
index bfa7dc88d..a7e688058 100644
--- a/.github/workflows/ci-op.yml
+++ b/.github/workflows/ci-op.yml
@@ -34,37 +34,43 @@ jobs:
         version: ['1']
         omp: [2]
         cc: ['gcc-11']
+        arch: ['x64']
   
         include:
-          - os: macos-13
-            version: '1.6'
+          - os: macos-15
+            version: '1'
             op: "ISO_OP"
             omp: 1
-            cc: gcc-13
+            cc: clang
+            arch: ARM64
 
-          - os: macos-13
+          - os: macos-15
             version: '1.8'
             op: "ISO_OP"
             omp: 1
-            cc: gcc-13
+            cc: clang
+            arch: ARM64
 
-          - os: macos-13
+          - os: macos-15
             version: '1.9'
             op: "ISO_OP"
             omp: 1
-            cc: gcc-13
+            cc: clang
+            arch: ARM64
 
           - os: ubuntu-latest
             version: '1.9'
             op: "VISCO_AC_OP"
             omp: 2
             cc: gcc-11
+            arch: x64
 
           - os: ubuntu-latest
             version: '1.10'
             op: "ISO_OP"
             omp: 2
             cc: gcc-11
+            arch: x64
 
     steps:
       - name: Checkout JUDI
@@ -74,22 +80,36 @@ jobs:
         uses: julia-actions/setup-julia@v1
         with:
           version: ${{ matrix.version }}
-          arch: x64
+          arch: ${{ matrix.arch }}
+
+      - name: Setup clang for osx
+        if: runner.os == 'macOS'
+        run: |
+          brew install libomp
+          echo "PATH=$(brew --prefix llvm@18)/bin:$PATH" >> $GITHUB_ENV
+          echo "LD_LIBRARY_PATH=$(brew --prefix llvm@18)/lib:$LD_LIBRARY_PATH" >> $GITHUB_ENV
+          sudo xcode-select -s /Applications/Xcode.app/Contents/Developer
+          echo "SDKROOT=$(xcrun --sdk macosx --show-sdk-path)" >> $GITHUB_ENV
 
       - name: Set up Python 3.9
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@v5
         with:
           python-version: 3.9
 
       - name: Set julia python
         run: |
           echo "PYTHON=$(which python3)" >> $GITHUB_ENV
+          echo "PYCALL_JL_RUNTIME_PYTHON=$(which python3)" >> $GITHUB_ENV
           python3 -m pip install devito[tests,extras]@git+https://github.com/devitocodes/devito.git
-          PYTHON=$(which python3) julia -e 'using Pkg;Pkg.add("PyCall");Pkg.build("PyCall")'
+          PYCALL_JL_RUNTIME_PYTHON=$(which python3) PYTHON=$(which python3) julia -e 'using Pkg;Pkg.add("PyCall");Pkg.build("PyCall")'
 
       - name: Build JUDI
         uses: julia-actions/julia-buildpkg@latest
 
+      - name: Debug numpy path
+        run: |
+          julia -e 'using PyCall;  np = pyimport("numpy"); @show np."__file__"'
+
       - name: Run tests
         uses: julia-actions/julia-runtest@latest
         with:
diff --git a/deps/build.jl b/deps/build.jl
index 3a357ac6c..cc89bdb97 100644
--- a/deps/build.jl
+++ b/deps/build.jl
@@ -8,14 +8,14 @@ end
 pk = try
     pyimport("pkg_resources")
 catch e
-    run(PyCall.python_cmd(`-m pip install --user setuptools`))
+    run(PyCall.python_cmd(`-m pip install -U --user --no-cache-dir setuptools`))
     pyimport("pkg_resources")
 end
 
 ################## Devito ##################
 # pip command
 dvver = "4.8.10"
-cmd = PyCall.python_cmd(`-m pip install --user devito\[extras,tests\]\>\=$(dvver)`)
+cmd = PyCall.python_cmd(`-m pip install --user --no-cache-dir devito\[extras,tests\]\>\=$(dvver)`)
 
 try
     dv_ver = VersionNumber(split(pk.get_distribution("devito").version, "+")[1])
@@ -32,5 +32,5 @@ end
 try
     mpl = pyimport("matplotlib")
 catch e
-    run(PyCall.python_cmd(`-m pip install --user matplotlib`))
+    run(PyCall.python_cmd(`-m pip install --user --no-cache-dir matplotlib`))
 end