diff --git a/third_party/fmt/include/fmt/format.h b/third_party/fmt/include/fmt/format.h
index 4c51630..bc2496c 100644
--- a/third_party/fmt/include/fmt/format.h
+++ b/third_party/fmt/include/fmt/format.h
@@ -321,7 +321,7 @@ inline typename Container::value_type* get_data(Container& c) {
   return c.data();
 }
 
-#ifdef _SECURE_SCL
+#if defined(_SECURE_SCL) && defined(_MSC_VER) && _MSC_VER < 1951
 // Make a checked iterator to avoid MSVC warnings.
 template <typename T> using checked_ptr = stdext::checked_array_iterator<T*>;
 template <typename T> checked_ptr<T> make_checked(T* p, std::size_t size) {