diff --git a/travis/build_env.sh b/travis/build_env.sh
index b6a9ac9613..5523ad1a08 100755
--- a/travis/build_env.sh
+++ b/travis/build_env.sh
@@ -1,9 +1,9 @@
 #!/bin/bash
 if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then 
 #  HOMEBREW_NO_AUTO_UPDATE=1 brew cask uninstall oclint || true  
-  HOMEBREW_NO_AUTO_UPDATE=1 brew install gcc "$MPI_IMPL" openblas python@3.8 ||true
+  HOMEBREW_NO_INSTALL_CLEANUP=1  HOMEBREW_NO_AUTO_UPDATE=1 brew install gcc "$MPI_IMPL" openblas python@3.7 ||true
   if [[ "$MPI_IMPL" == "openmpi" ]]; then
-     HOMEBREW_NO_AUTO_UPDATE=1 brew install scalapack
+      HOMEBREW_NO_INSTALL_CLEANUP=1 HOMEBREW_NO_AUTO_UPDATE=1 brew install scalapack
   fi
 fi
 if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then 
diff --git a/travis/compile_nwchem.sh b/travis/compile_nwchem.sh
index 1a9ee141dd..182580bea1 100755
--- a/travis/compile_nwchem.sh
+++ b/travis/compile_nwchem.sh
@@ -32,8 +32,8 @@ fi
    if [[ ! -z "$USE_SIMINT" ]] ; then 
        FOPT="-O0 -fno-aggressive-loop-optimizations"
        SIMINT_BUILD_TYPE=Debug
-       export PATH="/usr/local/opt/python@3.8/bin:$PATH"
-#       export LDFLAGS="-L/usr/local/opt/python@3.8/lib:$LDFLAGS"
+       export PATH="/usr/local/opt/python@3.7/bin:$PATH"
+#       export LDFLAGS="-L/usr/local/opt/python@3.7/lib:$LDFLAGS"
    fi
      ../travis/sleep_loop.sh make V=1 FOPTIMIZE="$FOPT" FDEBUG="$FDOPT"  -j3
      cd $TRAVIS_BUILD_DIR/src/64to32blas 
diff --git a/travis/nwchem.bashrc b/travis/nwchem.bashrc
index 1401cc6fb3..fe293bf76e 100644
--- a/travis/nwchem.bashrc
+++ b/travis/nwchem.bashrc
@@ -23,8 +23,8 @@ if [[ "$os" == "Darwin" ]]; then
   if [[ "$MPI_IMPL" == "mpich" ]]; then 
     export PATH=/usr/local/opt/mpich/bin/:$PATH 
   fi
-  export PATH=/usr/local/opt/python@3.8/bin:$PATH
-  export PYTHONVERSION=3.8
+  export PATH=/usr/local/opt/python@3.7/bin:$PATH
+  export PYTHONVERSION=3.7
 
 fi
 if [[ "$os" == "Linux" ]]; then