diff --git a/.travis.yml b/.travis.yml
index 46a8172c7a..fa04b58c6a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,4 +1,4 @@
-dist: xenial
+dist: bionic
 
 language: cpp
 
@@ -18,14 +18,15 @@ branches:
 addons:
   apt: &apt-global
     sources: &apt-common-sources
-      - ubuntu-toolchain-r-test
-      - llvm-toolchain-xenial-8
-      - llvm-toolchain-xenial
+      - sourceline: 'ppa:ubuntu-toolchain-r/test'
+      - sourceline: 'deb http://apt.llvm.org/bionic/ llvm-toolchain-bionic-8 main'
+      - sourceline: 'deb http://apt.llvm.org/bionic/ llvm-toolchain-bionic main'
     packages: &apt-common-packages
       - clang-8
       - g++-9
       - gcc-9
       - gdb
+      - cmake
       #- cppcheck
     config:
       retries: true
@@ -59,8 +60,8 @@ before_install:
     if [ "${CXX}" = 'clang++' ] && [ "${TRAVIS_OS_NAME}" != 'osx' ] && [ "${USE_COVERAGE}" = '' ]; then
       export CC=clang-8
       export CXX=clang++-8
-      #update-alternatives --install /usr/bin/clang   clang   /usr/bin/clang-7   90
-      #update-alternatives --install /usr/bin/clang++ clang++ /usr/bin/clang++-7 90
+      #update-alternatives --install /usr/bin/clang   clang   /usr/bin/clang-8   90
+      #update-alternatives --install /usr/bin/clang++ clang++ /usr/bin/clang++-8 90
     fi
 
 install:
diff --git a/projects/cmake/CMakeLists.txt b/projects/cmake/CMakeLists.txt
index c94160f441..f307157b2c 100644
--- a/projects/cmake/CMakeLists.txt
+++ b/projects/cmake/CMakeLists.txt
@@ -3,7 +3,7 @@
 #
 
 # CMake バージョン
-cmake_minimum_required(VERSION 3.0.2)
+cmake_minimum_required(VERSION 3.14.7)
 
 # option
 option(build_gtest_samples "gtest sample build." OFF)
@@ -24,6 +24,7 @@ endif()
 
 # プロジェクト名
 project(iutest CXX C)
+set(CMAKE_CXX_STANDARD 17)
 
 set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE NEVER)
 set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE NEVER)
diff --git a/projects/cmake/exsample.bat b/projects/cmake/example.bat
similarity index 93%
rename from projects/cmake/exsample.bat
rename to projects/cmake/example.bat
index e4f319aa4a..e03a37fd42 100644
--- a/projects/cmake/exsample.bat
+++ b/projects/cmake/example.bat
@@ -1,6 +1,6 @@
 @echo off
 
-SET VCVERSION=15
+SET VCVERSION=16
 SET DIRNAME=vc%VCVERSION%
 
 pushd .
diff --git a/projects/cmake/internal_utils.cmake b/projects/cmake/internal_utils.cmake
index 4f95cec2e6..69ee06ea8c 100644
--- a/projects/cmake/internal_utils.cmake
+++ b/projects/cmake/internal_utils.cmake
@@ -5,7 +5,7 @@
 macro(fix_default_compiler_settings_)
   if (MSVC)
     if(NOT (MSVC_VERSION LESS 1910))
-      set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /std:c++17 /permissive-")
+      set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /permissive-")
     endif()
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /WX")
     if (MSVC_VERSION LESS 1900)