diff --git a/include/nlohmann/detail/macro_scope.hpp b/include/nlohmann/detail/macro_scope.hpp
index ee5519b76..f3309e6b9 100644
--- a/include/nlohmann/detail/macro_scope.hpp
+++ b/include/nlohmann/detail/macro_scope.hpp
@@ -133,12 +133,13 @@
              template<typename> class AllocatorType,                       \
              template<typename, typename = void> class JSONSerializer,     \
              class BinaryType,                                             \
-             template<typename, typename> class LexerType>
+             template<typename, typename> class LexerType,                 \
+             template<typename> class SerializerType>
 
 #define NLOHMANN_BASIC_JSON_TPL                                            \
     basic_json<ObjectType, ArrayType, StringType, BooleanType,             \
     NumberIntegerType, NumberUnsignedType, NumberFloatType,                \
-    AllocatorType, JSONSerializer, BinaryType, LexerType>
+    AllocatorType, JSONSerializer, BinaryType, LexerType, SerializerType>
 
 // Macros to simplify conversion from/to types
 
diff --git a/include/nlohmann/json.hpp b/include/nlohmann/json.hpp
index 318da5e28..25b3b2c1b 100644
--- a/include/nlohmann/json.hpp
+++ b/include/nlohmann/json.hpp
@@ -231,7 +231,8 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
     template<typename CharType> using binary_writer = ::nlohmann::detail::binary_writer<basic_json, CharType>;
 
   JSON_PRIVATE_UNLESS_TESTED:
-    using serializer = ::nlohmann::detail::serializer<basic_json>;
+    // using serializer = ::nlohmann::detail::serializer<basic_json>;
+    using serializer = SerializerType<basic_json>;
 
   public:
     using value_t = detail::value_t;
diff --git a/include/nlohmann/json_fwd.hpp b/include/nlohmann/json_fwd.hpp
index dead19b0d..66c685f8c 100644
--- a/include/nlohmann/json_fwd.hpp
+++ b/include/nlohmann/json_fwd.hpp
@@ -28,6 +28,9 @@ namespace detail
 {
 template<typename BasicJsonType, typename InputAdapterType>
 class lexer;
+
+template<typename BasicJsonType>
+class serializer;
 }
 
 template<template<typename U, typename V, typename... Args> class ObjectType =
@@ -41,7 +44,8 @@ template<template<typename U, typename V, typename... Args> class ObjectType =
          template<typename T, typename SFINAE = void> class JSONSerializer =
          adl_serializer,
          class BinaryType = std::vector<std::uint8_t>,
-         template<typename BasicJsonType, typename InputAdapterType> class LexerType = detail::lexer>
+         template<typename BasicJsonType, typename InputAdapterType> class LexerType = detail::lexer,
+         template<typename BasicJsonType> class SerializerType = detail::serializer>
 class basic_json;
 
 /*!