diff --git a/.github/workflows/run_tests.yml b/.github/workflows/run_tests.yml
index 59e442e9d..22db11bb3 100644
--- a/.github/workflows/run_tests.yml
+++ b/.github/workflows/run_tests.yml
@@ -29,7 +29,9 @@ jobs:
           channel-priority: true
       - name: Install llvm on Macos
         if: startsWith(matrix.os, 'macos')
-        run: brew install llvm
+        run: |
+          brew install llvm@14
+          echo "CC=gcc-14" >> $GITHUB_ENV
       - name: Update pip and install dependencies
         shell: bash -l {0}
         run: |
diff --git a/.github/workflows/test_release.yml b/.github/workflows/test_release.yml
index 91456e2e8..93bee7fdd 100644
--- a/.github/workflows/test_release.yml
+++ b/.github/workflows/test_release.yml
@@ -22,7 +22,9 @@ jobs:
           channel-priority: true
       - name: Install llvm on Macos
         if: startsWith(matrix.os, 'macos')
-        run: brew install llvm
+        run: |
+          brew install llvm@14
+          echo "CC=gcc-14" >> $GITHUB_ENV
       - name: Update pip and install dependencies
         shell: bash -l {0}
         run: |