diff --git a/lcftrans/CMakeLists.txt b/lcftrans/CMakeLists.txt
index d0fab43..89102b9 100644
--- a/lcftrans/CMakeLists.txt
+++ b/lcftrans/CMakeLists.txt
@@ -1,8 +1,8 @@
 cmake_minimum_required(VERSION 3.7)
 project(lcftrans VERSION 1.0 LANGUAGES CXX)
 
-# C++14 is required
-set(CMAKE_CXX_STANDARD 14)
+# C++17 is required
+set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 set(CMAKE_CXX_EXTENSIONS ON)
 
diff --git a/lcftrans/Makefile.am b/lcftrans/Makefile.am
index 5566402..c5f3c22 100644
--- a/lcftrans/Makefile.am
+++ b/lcftrans/Makefile.am
@@ -10,7 +10,7 @@ lcftrans_SOURCES = \
 	src/utils.cpp \
 	src/utils.h
 lcftrans_CXXFLAGS = \
-	-std=c++14 \
+	-std=c++17 \
 	$(LCF_CFLAGS)
 lcftrans_LDADD = \
 	$(LCF_LIBS)
diff --git a/lcfviz/CMakeLists.txt b/lcfviz/CMakeLists.txt
index b890fb9..171c5a8 100644
--- a/lcfviz/CMakeLists.txt
+++ b/lcfviz/CMakeLists.txt
@@ -1,8 +1,8 @@
 cmake_minimum_required(VERSION 3.7)
 project(lcfviz VERSION 1.0 LANGUAGES CXX)
 
-# C++14 is required
-set(CMAKE_CXX_STANDARD 14)
+# C++17 is required
+set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 set(CMAKE_CXX_EXTENSIONS ON)
 
diff --git a/lcfviz/Makefile.am b/lcfviz/Makefile.am
index 1211b64..9ffd5ab 100644
--- a/lcfviz/Makefile.am
+++ b/lcfviz/Makefile.am
@@ -5,7 +5,7 @@ lcfviz_SOURCES = \
 	src/utils.cpp \
 	src/utils.h
 lcfviz_CXXFLAGS = \
-	-std=c++14 \
+	-std=c++17 \
 	$(LCF_CFLAGS)
 lcfviz_LDADD = \
 	$(LCF_LIBS)
diff --git a/lmu2png/CMakeLists.txt b/lmu2png/CMakeLists.txt
index ad4de0a..4fea40c 100644
--- a/lmu2png/CMakeLists.txt
+++ b/lmu2png/CMakeLists.txt
@@ -1,6 +1,11 @@
 cmake_minimum_required(VERSION 3.7)
 project(lmu2png VERSION 1.0 LANGUAGES CXX)
 
+# C++17 is required
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_CXX_EXTENSIONS ON)
+
 set(CMAKE_MODULE_PATH APPEND "${CMAKE_CURRENT_SOURCE_DIR}/../Modules")
 
 include(ConfigureWindows)
@@ -16,7 +21,5 @@ add_executable(lmu2png
 
 target_link_libraries(lmu2png ZLIB::ZLIB SDL2::IMAGE liblcf::liblcf)
 
-target_compile_features(lmu2png PRIVATE cxx_std_14)
-
 include(GNUInstallDirs)
 install(TARGETS lmu2png RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
diff --git a/lmu2png/Makefile.am b/lmu2png/Makefile.am
index 692f761..19eb8d8 100644
--- a/lmu2png/Makefile.am
+++ b/lmu2png/Makefile.am
@@ -6,7 +6,7 @@ lmu2png_SOURCES = \
 	src/sdlxyz.h \
 	src/chipset.h
 lmu2png_CXXFLAGS = \
-	-std=c++14 \
+	-std=c++17 \
 	$(LCF_CFLAGS) \
 	$(SDL2_IMAGE_CFLAGS) \
 	$(ZLIB_CFLAGS)