diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index aee63ab2..4ff237cf 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -163,8 +163,8 @@ jobs:
             PERL=perl
             echo "MACOSX_DEPLOYMENT_TARGET=10.15" >> $GITHUB_ENV
             echo "PYTHON=${PYTHON_INSTALL_PATH}/bin/python3" >> $GITHUB_ENV
-            export date=gdate
-            export realpath=grealpath
+            export date='python3 -c "import time; print(time.time_ns())'
+            export realpath="python3 -c 'import os, sys; print(os.path.realpath(sys.argv[1]))'"
             echo 'PIP_ARGS=--no-binary=:all:' >> $GITHUB_ENV
           elif [[ "${RUNNER_OS}" == "Linux" ]]; then
             MAKE=make