required for pdal to compile
--
diff --git a/CMakeLists.txt b/CMakeLists.txt
index c6262f6..8db485f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -81,7 +81,7 @@ endif()
 if("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
     target_compile_options(Library-C++
         PUBLIC
-        -std=c++11
+        -std=c++17
         PRIVATE
         -Wall
         -pedantic
@@ -91,7 +91,7 @@ if("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
 elseif("${CMAKE_CXX_COMPILER_ID}" MATCHES "GNU")
     target_compile_options(Library-C++
         PUBLIC
-        -std=c++11
+        -std=c++17
         # For some deprecations inside Eigen
         -Wno-deprecated-declarations
         PRIVATE
@@ -139,9 +139,9 @@ if(WITH_TESTS)
     add_subdirectory("${PROJECT_SOURCE_DIR}/vendor/googletest-release-1.10.0/googletest")
 
     set_target_properties(gtest PROPERTIES MACOSX_RPATH ON)
-    target_compile_options(gtest PUBLIC -std=c++11)
+    target_compile_options(gtest PUBLIC -std=c++17)
     set_target_properties(gtest_main PROPERTIES MACOSX_RPATH ON)
-    target_compile_options(gtest_main PUBLIC -std=c++11)
+    target_compile_options(gtest_main PUBLIC -std=c++17)
 
     add_subdirectory(test)
 endif()