diff --git a/include/fmt/base.h b/include/fmt/base.h
index 35a483dd..7b678d7d 100644
--- a/include/fmt/base.h
+++ b/include/fmt/base.h
@@ -853,7 +853,7 @@ template <typename Char = char> class parse_context {
   using char_type = Char;
   using iterator = const Char*;
 
-  explicit constexpr parse_context(basic_string_view<Char> fmt,
+  constexpr explicit parse_context(basic_string_view<Char> fmt,
                                    int next_arg_id = 0)
       : fmt_(fmt), next_arg_id_(next_arg_id) {}
 
@@ -1191,7 +1191,7 @@ class compile_parse_context : public parse_context<Char> {
   using base = parse_context<Char>;
 
  public:
-  explicit FMT_CONSTEXPR compile_parse_context(basic_string_view<Char> fmt,
+  FMT_CONSTEXPR explicit compile_parse_context(basic_string_view<Char> fmt,
                                                int num_args, const type* types,
                                                int next_arg_id = 0)
       : base(fmt, next_arg_id), num_args_(num_args), types_(types) {}
@@ -1647,7 +1647,7 @@ class format_string_checker {
 
  public:
   template <typename... T>
-  explicit FMT_CONSTEXPR format_string_checker(basic_string_view<Char> fmt,
+  FMT_CONSTEXPR explicit format_string_checker(basic_string_view<Char> fmt,
                                                arg_pack<T...>)
       : types_{mapped_type_constant<T, Char>::value...},
         named_args_{},
diff --git a/include/fmt/compile.h b/include/fmt/compile.h
index b4a1c14b..68b451c7 100644
--- a/include/fmt/compile.h
+++ b/include/fmt/compile.h
@@ -45,7 +45,7 @@ struct is_compiled_string : std::is_base_of<compiled_string, S> {};
 template <typename Char, size_t N, fmt::detail::fixed_string<Char, N> Str>
 struct udl_compiled_string : compiled_string {
   using char_type = Char;
-  explicit constexpr operator basic_string_view<char_type>() const {
+  constexpr explicit operator basic_string_view<char_type>() const {
     return {Str.data, N - 1};
   }
 };
diff --git a/include/fmt/format.h b/include/fmt/format.h
index 52d1be8e..9917f3d5 100644
--- a/include/fmt/format.h
+++ b/include/fmt/format.h
@@ -4039,16 +4039,16 @@ class format_int {
   }
 
  public:
-  explicit FMT_CONSTEXPR20 format_int(int value) : str_(format_signed(value)) {}
-  explicit FMT_CONSTEXPR20 format_int(long value)
+  FMT_CONSTEXPR20 explicit format_int(int value) : str_(format_signed(value)) {}
+  FMT_CONSTEXPR20 explicit format_int(long value)
       : str_(format_signed(value)) {}
-  explicit FMT_CONSTEXPR20 format_int(long long value)
+  FMT_CONSTEXPR20 explicit format_int(long long value)
       : str_(format_signed(value)) {}
-  explicit FMT_CONSTEXPR20 format_int(unsigned value)
+  FMT_CONSTEXPR20 explicit format_int(unsigned value)
       : str_(format_unsigned(value)) {}
-  explicit FMT_CONSTEXPR20 format_int(unsigned long value)
+  FMT_CONSTEXPR20 explicit format_int(unsigned long value)
       : str_(format_unsigned(value)) {}
-  explicit FMT_CONSTEXPR20 format_int(unsigned long long value)
+  FMT_CONSTEXPR20 explicit format_int(unsigned long long value)
       : str_(format_unsigned(value)) {}
 
   /// Returns the number of characters written to the output buffer.
diff --git a/test/format-impl-test.cc b/test/format-impl-test.cc
index 9645f832..1f2ef703 100644
--- a/test/format-impl-test.cc
+++ b/test/format-impl-test.cc
@@ -283,7 +283,7 @@ struct double_double {
   double a;
   double b;
 
-  explicit constexpr double_double(double a_val = 0, double b_val = 0)
+  constexpr explicit double_double(double a_val = 0, double b_val = 0)
       : a(a_val), b(b_val) {}
 
   operator double() const { return a + b; }
@@ -299,7 +299,7 @@ bool operator>=(const double_double& lhs, const double_double& rhs) {
 struct slow_float {
   float value;
 
-  explicit constexpr slow_float(float val = 0) : value(val) {}
+  constexpr explicit slow_float(float val = 0) : value(val) {}
   operator float() const { return value; }
   auto operator-() const -> slow_float { return slow_float(-value); }
 };
diff --git a/test/scan.h b/test/scan.h
index f6aaf4e3..8a58ea7b 100644
--- a/test/scan.h
+++ b/test/scan.h
@@ -211,7 +211,7 @@ class scan_parse_context {
  public:
   using iterator = string_view::iterator;
 
-  explicit FMT_CONSTEXPR scan_parse_context(string_view format)
+  FMT_CONSTEXPR explicit scan_parse_context(string_view format)
       : format_(format) {}
 
   FMT_CONSTEXPR auto begin() const -> iterator { return format_.begin(); }
@@ -347,7 +347,7 @@ class scan_context {
   using iterator = detail::scan_iterator;
   using sentinel = detail::scan_sentinel;
 
-  explicit FMT_CONSTEXPR scan_context(detail::scan_buffer& buf, scan_args args)
+  FMT_CONSTEXPR explicit scan_context(detail::scan_buffer& buf, scan_args args)
       : buf_(buf), args_(args) {}
 
   FMT_CONSTEXPR auto arg(int id) const -> scan_arg {