diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
index 91daa20eb..82b7debb3 100644
--- a/.github/workflows/macos.yml
+++ b/.github/workflows/macos.yml
@@ -51,7 +51,7 @@ jobs:
       working-directory: build
       run: |
         export PYTHONPATH=$PYTHONPATH:$(brew --prefix)/lib/python
-        cmake .. -DCMAKE_INSTALL_PREFIX=$(brew --prefix)/Cellar/${PACKAGE}/HEAD
+        cmake .. -DCMAKE_INSTALL_PREFIX=$(brew --prefix)/Cellar/${PACKAGE}/HEAD -DPython3_EXECUTABLE=$(brew --prefix)/bin/python3
     - run: make
       working-directory: build
     - run: make test