diff --git a/include/version b/include/version
index e48c84abc..6e61693cf 100644
--- a/include/version
+++ b/include/version
@@ -83,7 +83,7 @@ __cpp_lib_shared_ptr_weak_type              201606L <memory>
 __cpp_lib_shared_timed_mutex                201402L <shared_mutex>
 __cpp_lib_string_udls                       201304L <string>
 __cpp_lib_string_view                       201606L <string> <string_view>
-__cpp_lib_to_chars                          201611L <utility>
+__cpp_lib_to_chars                          201611L <charconv>
 __cpp_lib_transformation_trait_aliases      201304L <type_traits>
 __cpp_lib_transparent_operators             201510L <memory> <functional>
 __cpp_lib_tuple_element_t                   201402L <tuple>