diff --git a/.github/workflows/test_suite.yml b/.github/workflows/test_suite.yml
index a13bbe04d..7a5f15d34 100644
--- a/.github/workflows/test_suite.yml
+++ b/.github/workflows/test_suite.yml
@@ -101,8 +101,8 @@ jobs:
         brew install boost
         brew install eigen
         brew install cmake
-        pip install numpy
-        pip install netCDF4
+        pip3 install numpy
+        pip3 install netCDF4
 
     # tmate can be used to get an interactive ssh session to the github runner
     # for debugging actions. See