diff --git a/src/travis/macos-before-install.sh b/src/travis/macos-before-install.sh
index bd98232f..562b4a8d 100755
--- a/src/travis/macos-before-install.sh
+++ b/src/travis/macos-before-install.sh
@@ -8,9 +8,16 @@ echo "This device has $cpucount CPUs for compiling..."
 
 #brew upgrade
 
+brew install coreutils
+brew install bash
+
 # prefer standard GNU tools like date over MacOS defaults
 export PATH="/usr/local/opt/coreutils/libexec/gnubin:$(brew --prefix)/opt/gnu-tar/libexec/gnubin:$PATH"
 
+date --version
+gdate --version
+bash --version
+
 cd ~
 
 #if [ ! -f python-$MIN_PYTHON_VERSION-macosx10.9.pkg ]; then