diff --git a/CMakeLists.txt b/CMakeLists.txt
index d74482a..0c68801 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,6 @@
 cmake_minimum_required(VERSION 3.10)
 
-project(kima2 VERSION 1.8.0)
+project(kima2 VERSION 1.8.1)
 
 set(CMAKE_MODULE_PATH "${CMAKE_HOME_DIRECTORY}/cmake")
 
@@ -117,7 +117,7 @@ if( MINGW )
     ${MINGW_PATH}/libmd4c.dll
     ${MINGW_PATH}/libbrotlicommon.dll
     ${MINGW_PATH}/libbrotlidec.dll
-    ${MINGW_PATH}/libfmt.dll
+    #${MINGW_PATH}/libfmt.dll
     ${MINGW_PATH}/libb2-1.dll
     ${MINGW_PATH}/libiconv-2.dll)
     install(FILES ${MINGW_PATH}/../share/qt6/plugins/platforms/qwindows.dll
diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt
index 2e78044..402c687 100644
--- a/src/core/CMakeLists.txt
+++ b/src/core/CMakeLists.txt
@@ -25,10 +25,10 @@ set(CORE_SOURCES
 add_library(core STATIC ${CORE_SOURCES})
 #target_include_directories(core PRIVATE ${PROJECT_SOURCE_DIR}/subprojects/csv-parser/single_include)
 if (WIN32)
-    target_link_libraries(core PRIVATE sqlite3 nlohmann_json::nlohmann_json fmt::fmt)
+    target_link_libraries(core PRIVATE sqlite3 nlohmann_json::nlohmann_json)
     target_link_libraries(core PRIVATE bcrypt)
 else()
-	target_link_libraries(core PRIVATE sqlite3 nlohmann_json::nlohmann_json fmt::fmt)
+	target_link_libraries(core PRIVATE sqlite3 nlohmann_json::nlohmann_json)
 endif()
 
 target_include_directories(core PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/..)
diff --git a/src/core/database.cpp b/src/core/database.cpp
index 863bc5d..d6b7384 100644
--- a/src/core/database.cpp
+++ b/src/core/database.cpp
@@ -2,7 +2,7 @@
 
 #include <chrono>
 #include <filesystem>
-#include <fmt/chrono.h>
+#include <format>
 #include <iostream>
 #include <stdexcept>
 #include <vector>
@@ -47,7 +47,7 @@ void Database::newDb()
     fs::path destPath = sourcePath.parent_path() / sourcePath.stem();
 
     auto chronoTime = std::chrono::system_clock::now();
-    std::string timeString = fmt::format("{0:%FT%H-%M-%S}", chronoTime);
+    std::string timeString = std::format("{0:%FT%H-%M-%S}", chronoTime);
 
     destPath += std::string("_") += timeString += ".db";
 
diff --git a/src/core/utils.cpp b/src/core/utils.cpp
index 1e4b9c6..1725924 100644
--- a/src/core/utils.cpp
+++ b/src/core/utils.cpp
@@ -2,13 +2,13 @@
 
 #include <algorithm>
 #include <clocale>
-#include <fmt/format.h>
+#include <format>
 #include <iomanip>
 #include <numeric>
 
 #include <iostream>
 
-using namespace fmt;
+//using namespace fmt;
 
 std::string formatCentAsEuroString(const int cent, int width)
 {
@@ -32,7 +32,7 @@ std::string formatCentAsEuroString(const int cent, int width)
 #else
     std::locale myLocale{"de_DE.utf8"};
 #endif
-    return fmt::format(myLocale, "{:{}.2Lf} €", cent / 100.0L, width);
+    return std::format(myLocale, "{:{}.2Lf} €", cent / 100.0L, width);
 }
 
 std::string &ltrim(std::string &str, const std::string &chars)