diff --git a/.travis_scripts/cmake_builder.sh b/.travis_scripts/cmake_builder.sh
index c011878..ccb3331 100755
--- a/.travis_scripts/cmake_builder.sh
+++ b/.travis_scripts/cmake_builder.sh
@@ -12,10 +12,10 @@
 # Optional environmental variables
 #   - DESTDIR <- used for setting the install prefix
 #   - BUILD_TOOL=["Unix Makefile"|"Ninja"]
-#   - BUILDNAME <-- how to identify this build on the dashboard
+#   - BUILDNAME <- how to identify this build on the dashboard
 #   - DO_MemCheck <- if set, try to use valgrind
-#   - DO_Coverage    <- if set, try to do dashboard coverage testing
-#   
+#   - DO_Coverage <- if set, try to do dashboard coverage testing
+#
 
 env_set=1
 if ${BUILD_TYPE+false}; then
@@ -78,7 +78,7 @@ if ! ${DO_MemCheck+false}; then
    valgrind --version
    CTEST_TESTING_OPTION="-D ExperimentalMemCheck"
 else
-#   - DO_Coverage    <- if set, try to do dashboard coverage testing
+#   - DO_Coverage <- if set, try to do dashboard coverage testing
   if ! ${DO_Coverage+false}; then
      export CXXFLAGS="-fprofile-arcs -ftest-coverage"
      export LDFLAGS="-fprofile-arcs -ftest-coverage"
@@ -117,14 +117,14 @@ cd "${_BUILD_DIR_NAME}"
   ctest -C ${BUILD_TYPE} -D ExperimentalStart -D ExperimentalConfigure -D ExperimentalBuild ${CTEST_TESTING_OPTION} -D ExperimentalSubmit
   # Final step is to verify that installation succeeds
   cmake --build . --config ${BUILD_TYPE} --target install
-  
+
   if [ "${DESTDIR}" != "/usr/local" ]; then
      ${_BUILD_EXE} install
   fi
 cd -
 
 if ${CLEANUP+false}; then
-  echo "Skipping cleanup:  build directory will persist."
+  echo "Skipping cleanup: build directory will persist."
 else
   rm -r "${_BUILD_DIR_NAME}"
 fi
diff --git a/.travis_scripts/travis.before_install.linux.sh b/.travis_scripts/travis.before_install.linux.sh
index 18e019d..9b556de 100644
--- a/.travis_scripts/travis.before_install.linux.sh
+++ b/.travis_scripts/travis.before_install.linux.sh
@@ -1,7 +1,8 @@
 set -vex
-#before_install: pyenv install 3.5.4 && pyenv global 3.5.4
-#before_install: pyenv global 3.6
-# https://docs.travis-ci.com/user/languages/python/
-# "for Trusty, this means 2.7.6 and 3.4.3"
 
-pyenv global 3.6
+# Preinstalled versions of python are dependent on which Ubuntu distribution
+# you are running. The below version needs to be updated whenever we roll
+# the Ubuntu version used in Travis.
+# https://docs.travis-ci.com/user/languages/python/
+
+pyenv global 3.7.1
diff --git a/.travis_scripts/travis.before_install.osx.sh b/.travis_scripts/travis.before_install.osx.sh
index d7d11a5..5d83c0c 100644
--- a/.travis_scripts/travis.before_install.osx.sh
+++ b/.travis_scripts/travis.before_install.osx.sh
@@ -1,5 +1 @@
 # NOTHING TO DO HERE
-# set -vex
- 
-#brew install pyenv
-#which pyenv
diff --git a/.travis_scripts/travis.install.linux.sh b/.travis_scripts/travis.install.linux.sh
index 84c3a61..7c5846f 100644
--- a/.travis_scripts/travis.install.linux.sh
+++ b/.travis_scripts/travis.install.linux.sh
@@ -1,6 +1,6 @@
 set -vex
 
-wget https://github.com/ninja-build/ninja/releases/download/v1.7.2/ninja-linux.zip
+wget https://github.com/ninja-build/ninja/releases/download/v1.9.0/ninja-linux.zip
 unzip -q ninja-linux.zip -d build
 
 pip3 install meson
diff --git a/.travis_scripts/travis.install.osx.sh b/.travis_scripts/travis.install.osx.sh
index 1c6c6f0..5d83c0c 100644
--- a/.travis_scripts/travis.install.osx.sh
+++ b/.travis_scripts/travis.install.osx.sh
@@ -1,5 +1 @@
 # NOTHING TO DO HERE
-# set -vex
-
-#python3 -m venv venv
-#source venv/bin/activate