diff --git a/CMakeLists.txt b/CMakeLists.txt
index 05198b8..a2f1e02 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -15,7 +15,7 @@ find_cppkg(nlohmann_json 3.9.1  MODULE nlohmann_json::nlohmann_json TYPE lib OPT
 find_cppkg(ryml 0.2.0  MODULE ryml::ryml TYPE lib OPTIONAL OFF)
 find_cppkg(toml11 3.7.0  MODULE toml11::toml11 TYPE lib OPTIONAL OFF)
 find_cppkg(yaml-cpp 0.6.3  MODULE yaml-cpp TYPE lib OPTIONAL OFF)
-find_cppkg(fmt 7.1.3  MODULE fmt::fmt TYPE lib OPTIONAL OFF)
+find_cppkg(fmt 8.0.1  MODULE fmt::fmt-header-only TYPE lib OPTIONAL OFF)
 find_cppkg(magic_enum 0.7.3  MODULE magic_enum::magic_enum TYPE lib)
 find_cppkg(nameof 0.10.0  MODULE nameof::nameof TYPE lib)
 
diff --git a/cppm.toml b/cppm.toml
index 7ba3c95..4d8a45e 100644
--- a/cppm.toml
+++ b/cppm.toml
@@ -66,7 +66,7 @@
 [dependencies]
     nameof = { version="0.10.0", link="public"}
     magic_enum = { version= "0.7.3", link="public"}
-    fmt = {version="7.1.3", link="public", optional=true}
+    fmt = {version="8.0.1", link="public", optional=true}
     yaml-cpp   = { version="0.6.3",  link="public", optional=true}
     toml11     = { version="3.7.0",  link="public", optional=true}
     ryml       = { version= "0.2.0", link="public", optional=true}
diff --git a/examples/parse_file.cpp b/examples/parse_file.cpp
index f54cc94..cc429a3 100644
--- a/examples/parse_file.cpp
+++ b/examples/parse_file.cpp
@@ -1,5 +1,4 @@
 #include "serdepp/serde.hpp"
-
 #include "serdepp/adaptor/nlohmann_json.hpp"
 #include "serdepp/adaptor/rapidjson.hpp"
 #include "serdepp/adaptor/toml11.hpp"
diff --git a/include/serdepp/adaptor/fmt.hpp b/include/serdepp/adaptor/fmt.hpp
index 40566dc..972e9cf 100644
--- a/include/serdepp/adaptor/fmt.hpp
+++ b/include/serdepp/adaptor/fmt.hpp
@@ -10,18 +10,18 @@
 template <typename T>
 struct fmt::formatter<T, std::enable_if_t<serde::type::is_struct_v<T>, char>>
     : fmt::formatter<std::string> {
-    template <typename format_ctx>
-    auto format(const T& serde_type, format_ctx& ctx) {
-        return formatter<std::string>::format(serde::to_string(serde_type), ctx);
-    }
-};
-
-template<>
-struct fmt::formatter<serde::serde_sstream> : fmt::formatter<std::string> {
-    template <typename format_ctx>
-    auto format(const serde::serde_sstream& serde_type, format_ctx& ctx) {
-        return formatter<std::string>::format(serde_type.str(), ctx);
+    template <typename FormatCtx>
+    auto format(const T& serde_type, FormatCtx& ctx) {
+        return fmt::formatter<std::string>::format(serde::to_string(serde_type), ctx);
     }
 };
+//
+//template<>
+//struct fmt::formatter<serde::serde_sstream> : fmt::formatter<std::string> {
+//    template <typename FormatCtx>
+//    auto format(const serde::serde_sstream& serde_type, FormatCtx& ctx) {
+//        return fmt::formatter<std::string>::format(serde_type.str(), ctx);
+//    }
+//};
 
 #endif
diff --git a/thirdparty/fmt/8.0.1/cppkg.toml b/thirdparty/fmt/8.0.1/cppkg.toml
index bde3637..90efc7e 100644
--- a/thirdparty/fmt/8.0.1/cppkg.toml
+++ b/thirdparty/fmt/8.0.1/cppkg.toml
@@ -1,6 +1,6 @@
 [fmt]
 version = "8.0.1"
 description = "A modern formatting library"
-module = "fmt::fmt"
+module = "fmt::fmt-header-only"
 url="https://github.com/fmtlib/fmt/releases/download/8.0.1/fmt-8.0.1.zip"
 flags="-DFMT_DOC=OFF -DFMT_TEST=OFF"
\ No newline at end of file
diff --git a/thirdparty/fmt/8.0.1/fmt.cmake.in b/thirdparty/fmt/8.0.1/fmt.cmake.in
index e313c21..a0cbb18 100644
--- a/thirdparty/fmt/8.0.1/fmt.cmake.in
+++ b/thirdparty/fmt/8.0.1/fmt.cmake.in
@@ -2,7 +2,7 @@
 cmake_minimum_required(VERSION 3.6)
 project(fmt-8.0.1-install)
 
-set(CPPM_VERSION 0.0.13)
+set(CPPM_VERSION ${CPPM_VERSION})
 include(${CMAKE_CURRENT_SOURCE_DIR}/cmake/cppm_loader.cmake)
-download_package(fmt 8.0.1  URL https://github.com/fmtlib/fmt/releases/download/8.0.1/fmt-8.0.1.zip  TYPE lib CMAKE_ARGS ${CMAKE_ARGS} -DFMT_DOC=OFF -DFMT_TEST=OFF -DFMT_FUZZ=OFF)
+download_package(fmt 8.0.1  URL https://github.com/fmtlib/fmt/releases/download/8.0.1/fmt-8.0.1.zip  TYPE lib CMAKE_ARGS ${CMAKE_ARGS} -DFMT_DOC=OFF -DFMT_TEST=OFF)