diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index bd6e69a..cc19c4e 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -29,7 +29,7 @@ jobs:
         with:
           submodules: recursive
       - uses: conda-incubator/setup-miniconda@v3
-        if: ${{ matrix.os }} != macos-13 && ${{ matrix.flags != '' }}
+        if: ${{ matrix.flags != '' }}
         with:
           python-version: 3.12
           mamba-version: "*"
@@ -38,7 +38,7 @@ jobs:
           activate-environment: blosc2
           environment-file: environment.yml
       - shell: bash -el {0}
-        if: ${{ matrix.os != 'macos-13' && matrix.flags != '' }}
+        if: ${{ matrix.flags != '' }}
         run: |
           conda info
           conda list
@@ -60,10 +60,10 @@ jobs:
         if: runner.os == 'Windows'
         run: choco install ninja
 
-      - name: Install packages (Ubuntu)
-        if: runner.os == 'Linux'
-        shell: bash -el {0}
-        run: conda install clang -y
+      # - name: Install packages (Ubuntu)
+      #   if: runner.os == 'Linux'
+      #   shell: bash -el {0}
+      #   run: conda install clang -y
 
       - name: Build
         shell: bash -el {0}