diff --git a/CMakeLists.txt b/CMakeLists.txt
index cddc28c..baf724c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.12..4.3)
 set(CMAKE_LEGACY_CYGWIN_WIN32 0)
 
 
@@ -109,7 +109,7 @@ endif()
 
 if(CMAKE_COMPILER_IS_GNUCXX)
 
-	set(CXX_FLAGS "-Wall -Wextra -std=c++11")
+	set(CXX_FLAGS "-Wall -Wextra -std=c++17")
 	set(C_FLAGS "-Wall -Wextra")
 
 	if(CMAKE_SYSTEM_NAME STREQUAL "SunOS")
diff --git a/booster/CMakeLists.txt b/booster/CMakeLists.txt
index 264b4ff..c270aee 100644
--- a/booster/CMakeLists.txt
+++ b/booster/CMakeLists.txt
@@ -6,7 +6,7 @@
 #  http://www.boost.org/LICENSE_1_0.txt)
 #
 
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.12..99.0)
 project(booster)
 include(CheckFunctionExists)
 include(CheckCXXSourceCompiles)
@@ -197,7 +197,7 @@ endif()
 #############################################################################
 
 if(CMAKE_COMPILER_IS_GNUCXX)
-	set(CXX_FLAGS "-Wall -Wextra -std=c++11")
+	set(CXX_FLAGS "-Wall -Wextra -std=c++17")
 
 	if(CMAKE_SYSTEM_NAME STREQUAL "SunOS")
 		set(CXX_FLAGS "${CXX_FLAGS} -pthreads")