diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 0739a00..a9accc7 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -62,10 +62,10 @@ fast_float_add_cpp_test(example_comma_test)
 fast_float_add_cpp_test(basictest)
 option(FASTFLOAT_CONSTEXPR_TESTS "Require constexpr tests (build will fail if the compiler won't support it)" OFF)
 if (FASTFLOAT_CONSTEXPR_TESTS)
-  target_compile_features(basictest PRIVATE cxx_std_20)
+  target_compile_features(basictest PRIVATE cxx_std_23)
   target_compile_definitions(basictest PRIVATE FASTFLOAT_CONSTEXPR_TESTS)
 else()
-  target_compile_features(basictest PRIVATE cxx_std_17)
+  target_compile_features(basictest PRIVATE cxx_std_23)
 endif()
 
 fast_float_add_cpp_test(long_test)