diff --git CMakeLists.txt CMakeLists.txt
index 882a3a88a2..f3fa193cc8 100644
--- CMakeLists.txt
+++ CMakeLists.txt
@@ -63,7 +63,6 @@ OPTION(ENABLE_LUA_REPL "Enables Lua repl (requires C++11 compiler) [default: ON]
 OPTION(ENABLE_FASTTEXT "Link with FastText library [default: OFF]" OFF)
 OPTION(ENABLE_BACKWARD "Build rspamd with backward-cpp stacktrace [default: ON]" ON)
 OPTION(SYSTEM_ZSTD "Use system zstd instead of bundled one [default: OFF]" OFF)
-OPTION(SYSTEM_FMT "Use system fmt instead of bundled one [default: OFF]" OFF)
 OPTION(SYSTEM_DOCTEST "Use system doctest instead of bundled one [default: OFF]" OFF)
 OPTION(SYSTEM_XXHASH "Use system xxhash instead of bundled one [default: OFF]" OFF)
 
@@ -655,11 +654,6 @@ IF (BACKWARD_LIBRARIES)
     message(STATUS "Backward-cpp libraries: ${BACKWARD_LIBRARIES}")
 ENDIF ()
 
-IF (SYSTEM_FMT MATCHES "OFF")
-    INCLUDE_DIRECTORIES("${CMAKE_SOURCE_DIR}/contrib/fmt/include")
-ELSE ()
-    find_package(fmt)
-ENDIF ()
 IF (SYSTEM_DOCTEST MATCHES "OFF")
     ADD_SUBDIRECTORY(contrib/doctest)
     INCLUDE_DIRECTORIES("${CMAKE_SOURCE_DIR}/contrib/doctest")
diff --git src/client/rspamc.cxx src/client/rspamc.cxx
index 31a4aaf241..4043598773 100644
--- src/client/rspamc.cxx
+++ src/client/rspamc.cxx
@@ -1,5 +1,5 @@
 /*
- * Copyright 2024 Vsevolod Stakhov
+ * Copyright 2025 Vsevolod Stakhov
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -35,8 +35,8 @@
 
 #include "frozen/string.h"
 #include "frozen/unordered_map.h"
-#include "fmt/format.h"
-#include "fmt/color.h"
+#include "contrib/fmt/include/fmt/format.h"
+#include "contrib/fmt/include/fmt/color.h"
 #include "libutil/cxx/file_util.hxx"
 #include "libutil/cxx/util.hxx"
 
diff --git src/libmime/lang_detection_fasttext.cxx src/libmime/lang_detection_fasttext.cxx
index 89916151f3..8ea2706e66 100644
--- src/libmime/lang_detection_fasttext.cxx
+++ src/libmime/lang_detection_fasttext.cxx
@@ -1,5 +1,5 @@
 /*
- * Copyright 2024 Vsevolod Stakhov
+ * Copyright 2025 Vsevolod Stakhov
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,7 +20,7 @@
 #include "fasttext/fasttext.h"
 #include "libserver/cfg_file.h"
 #include "libserver/logger.h"
-#include "fmt/base.h"
+#include "contrib/fmt/include/fmt/base.h"
 #include "stat_api.h"
 #include <exception>
 #include <string_view>
diff --git src/libserver/backtrace.cxx src/libserver/backtrace.cxx
index c24e619369..5ebde677ed 100644
--- src/libserver/backtrace.cxx
+++ src/libserver/backtrace.cxx
@@ -1,5 +1,5 @@
 /*
- * Copyright 2024 Vsevolod Stakhov
+ * Copyright 2025 Vsevolod Stakhov
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,7 +19,7 @@
 #ifdef BACKWARD_ENABLE
 
 #include "contrib/backward-cpp/backward.hpp"
-#include "fmt/base.h"
+#include "contrib/fmt/include/fmt/base.h"
 #include "logger.h"
 
 namespace rspamd {
diff --git src/libserver/cfg_rcl.cxx src/libserver/cfg_rcl.cxx
index 6ea8945abc..f383669080 100644
--- src/libserver/cfg_rcl.cxx
+++ src/libserver/cfg_rcl.cxx
@@ -1,5 +1,5 @@
 /*
- * Copyright 2024 Vsevolod Stakhov
+ * Copyright 2025 Vsevolod Stakhov
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -34,7 +34,7 @@
 #include <algorithm>// for std::transform
 #include <memory>
 #include "contrib/ankerl/unordered_dense.h"
-#include "fmt/base.h"
+#include "contrib/fmt/include/fmt/base.h"
 #include "libutil/cxx/util.hxx"
 #include "libutil/cxx/file_util.hxx"
 #include "frozen/unordered_set.h"
diff --git src/libserver/cfg_utils.cxx src/libserver/cfg_utils.cxx
index 9612cdae46..dfbdc6bee2 100644
--- src/libserver/cfg_utils.cxx
+++ src/libserver/cfg_utils.cxx
@@ -1,5 +1,5 @@
 /*
- * Copyright 2024 Vsevolod Stakhov
+ * Copyright 2025 Vsevolod Stakhov
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -65,7 +65,7 @@
 #include <string>
 #include <string_view>
 #include <vector>
-#include "fmt/base.h"
+#include "contrib/fmt/include/fmt/base.h"
 #include "cxx/util.hxx"
 #include "frozen/unordered_map.h"
 #include "frozen/string.h"
diff --git src/libserver/css/css_parser.cxx src/libserver/css/css_parser.cxx
index 11fa830f07..ade499ba40 100644
--- src/libserver/css/css_parser.cxx
+++ src/libserver/css/css_parser.cxx
@@ -1,5 +1,5 @@
 /*
- * Copyright 2024 Vsevolod Stakhov
+ * Copyright 2025 Vsevolod Stakhov
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,7 +20,7 @@
 #include "css_rule.hxx"
 #include "css_util.hxx"
 #include "css.hxx"
-#include "fmt/base.h"
+#include "contrib/fmt/include/fmt/base.h"
 
 #include <vector>
 #include <unicode/utf8.h>
diff --git src/libserver/css/css_selector.cxx src/libserver/css/css_selector.cxx
index d2ae093cbb..527b123774 100644
--- src/libserver/css/css_selector.cxx
+++ src/libserver/css/css_selector.cxx
@@ -1,5 +1,5 @@
 /*
- * Copyright 2024 Vsevolod Stakhov
+ * Copyright 2025 Vsevolod Stakhov
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,7 +17,7 @@
 #include "css_selector.hxx"
 #include "css.hxx"
 #include "libserver/html/html.hxx"
-#include "fmt/base.h"
+#include "contrib/fmt/include/fmt/base.h"
 #define DOCTEST_CONFIG_IMPLEMENTATION_IN_DLL
 #include "doctest/doctest.h"
 
diff --git src/libserver/css/css_value.cxx src/libserver/css/css_value.cxx
index f2ff553638..52a61d3b64 100644
--- src/libserver/css/css_value.cxx
+++ src/libserver/css/css_value.cxx
@@ -1,5 +1,5 @@
 /*
- * Copyright 2024 Vsevolod Stakhov
+ * Copyright 2025 Vsevolod Stakhov
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,7 +20,7 @@
 #include "frozen/string.h"
 #include "libutil/util.h"
 #include "contrib/ankerl/unordered_dense.h"
-#include "fmt/base.h"
+#include "contrib/fmt/include/fmt/base.h"
 
 #define DOCTEST_CONFIG_IMPLEMENTATION_IN_DLL
 #include "doctest/doctest.h"
diff --git src/libserver/html/html.cxx src/libserver/html/html.cxx
index 0fe31c2a30..93d1fdf91b 100644
--- src/libserver/html/html.cxx
+++ src/libserver/html/html.cxx
@@ -1,11 +1,11 @@
-/*-
- * Copyright 2021 Vsevolod Stakhov
+/*
+ * Copyright 2025 Vsevolod Stakhov
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
- *   http://www.apache.org/licenses/LICENSE-2.0
+ *    http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
@@ -35,9 +35,9 @@
 #include "html_tag.hxx"
 #include "html_url.hxx"
 
-#include <frozen/unordered_map.h>
-#include <frozen/string.h>
-#include <fmt/core.h>
+#include "contrib/frozen/include/frozen/unordered_map.h"
+#include "contrib/frozen/include/frozen/string.h"
+#include "contrib/fmt/include/fmt/core.h"
 
 #include <unicode/uversion.h>
 
diff --git src/libserver/html/html_tests.cxx src/libserver/html/html_tests.cxx
index 00595feaaa..3be836a2d5 100644
--- src/libserver/html/html_tests.cxx
+++ src/libserver/html/html_tests.cxx
@@ -1,5 +1,5 @@
 /*
- * Copyright 2024 Vsevolod Stakhov
+ * Copyright 2025 Vsevolod Stakhov
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,7 +19,7 @@
 #include "libserver/task.h"
 
 #include <vector>
-#include <fmt/core.h>
+#include "contrib/fmt/include/fmt/core.h"
 
 
 #define DOCTEST_CONFIG_IMPLEMENTATION_IN_DLL
diff --git src/libserver/hyperscan_tools.cxx src/libserver/hyperscan_tools.cxx
index 5035bee2c6..75863bf39b 100644
--- src/libserver/hyperscan_tools.cxx
+++ src/libserver/hyperscan_tools.cxx
@@ -1,5 +1,5 @@
 /*
- * Copyright 2024 Vsevolod Stakhov
+ * Copyright 2025 Vsevolod Stakhov
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,7 +21,7 @@
 #include <filesystem>
 #include "contrib/ankerl/unordered_dense.h"
 #include "contrib/ankerl/svector.h"
-#include "fmt/base.h"
+#include "contrib/fmt/include/fmt/base.h"
 #include "libutil/cxx/file_util.hxx"
 #include "libutil/cxx/error.hxx"
 #include "hs.h"
diff --git src/libserver/symcache/symcache_impl.cxx src/libserver/symcache/symcache_impl.cxx
index 7159555d2c..4d17348c20 100644
--- src/libserver/symcache/symcache_impl.cxx
+++ src/libserver/symcache/symcache_impl.cxx
@@ -1,5 +1,5 @@
 /*
- * Copyright 2024 Vsevolod Stakhov
+ * Copyright 2025 Vsevolod Stakhov
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,7 +21,7 @@
 #include "unix-std.h"
 #include "libutil/cxx/file_util.hxx"
 #include "libutil/cxx/util.hxx"
-#include "fmt/base.h"
+#include "contrib/fmt/include/fmt/base.h"
 #include "contrib/t1ha/t1ha.h"
 
 #ifdef __has_include
diff --git src/libserver/symcache/symcache_item.cxx src/libserver/symcache/symcache_item.cxx
index 233e8113aa..f58332ea5f 100644
--- src/libserver/symcache/symcache_item.cxx
+++ src/libserver/symcache/symcache_item.cxx
@@ -1,5 +1,5 @@
 /*
- * Copyright 2024 Vsevolod Stakhov
+ * Copyright 2025 Vsevolod Stakhov
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,7 +17,7 @@
 #include "lua/lua_common.h"
 #include "symcache_internal.hxx"
 #include "symcache_item.hxx"
-#include "fmt/base.h"
+#include "contrib/fmt/include/fmt/base.h"
 #include "libserver/task.h"
 #include "libutil/cxx/util.hxx"
 #include <numeric>
diff --git src/libstat/backends/cdb_backend.cxx src/libstat/backends/cdb_backend.cxx
index bd05e8ef8c..0f55a725c4 100644
--- src/libstat/backends/cdb_backend.cxx
+++ src/libstat/backends/cdb_backend.cxx
@@ -1,5 +1,5 @@
 /*
- * Copyright 2024 Vsevolod Stakhov
+ * Copyright 2025 Vsevolod Stakhov
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -28,7 +28,7 @@
 #include <optional>
 #include "contrib/expected/expected.hpp"
 #include "contrib/ankerl/unordered_dense.h"
-#include "fmt/base.h"
+#include "contrib/fmt/include/fmt/base.h"
 
 namespace rspamd::stat::cdb {
 
diff --git src/libstat/backends/redis_backend.cxx src/libstat/backends/redis_backend.cxx
index 06842b078f..7137904e99 100644
--- src/libstat/backends/redis_backend.cxx
+++ src/libstat/backends/redis_backend.cxx
@@ -1,5 +1,5 @@
 /*
- * Copyright 2024 Vsevolod Stakhov
+ * Copyright 2025 Vsevolod Stakhov
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,7 +19,7 @@
 #include "stat_internal.h"
 #include "upstream.h"
 #include "libserver/mempool_vars_internal.h"
-#include "fmt/base.h"
+#include "contrib/fmt/include/fmt/base.h"
 
 #include "libutil/cxx/error.hxx"
 
diff --git src/libutil/cxx/file_util.cxx src/libutil/cxx/file_util.cxx
index 2f031f076e..bc5dcdf3ba 100644
--- src/libutil/cxx/file_util.cxx
+++ src/libutil/cxx/file_util.cxx
@@ -1,5 +1,5 @@
 /*
- * Copyright 2023 Vsevolod Stakhov
+ * Copyright 2025 Vsevolod Stakhov
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 #include "file_util.hxx"
-#include <fmt/core.h>
+#include "contrib/fmt/include/fmt/core.h"
 #include "libutil/util.h"
 #include "libutil/unix-std.h"
 
diff --git src/lua/lua_shingles.cxx src/lua/lua_shingles.cxx
index 4682ef74f5..7d4b277fc4 100644
--- src/lua/lua_shingles.cxx
+++ src/lua/lua_shingles.cxx
@@ -17,7 +17,7 @@
 #include "lua_common.h"
 #include "lua_classnames.h"
 #include "shingles.h"
-#include "fmt/format.h"
+#include "contrib/fmt/include/fmt/format.h"
 
 /***
  * @module rspamd_shingle
diff --git test/rspamd_cxx_unit_dkim.hxx test/rspamd_cxx_unit_dkim.hxx
index d445c3800d..d501aaedd8 100644
--- test/rspamd_cxx_unit_dkim.hxx
+++ test/rspamd_cxx_unit_dkim.hxx
@@ -1,5 +1,5 @@
 /*
- * Copyright 2024 Vsevolod Stakhov
+ * Copyright 2025 Vsevolod Stakhov
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,7 +21,7 @@
 
 #define DOCTEST_CONFIG_IMPLEMENTATION_IN_DLL
 #include "doctest/doctest.h"
-#include "fmt/base.h"
+#include "contrib/fmt/include/fmt/base.h"
 #include "libserver/dkim.h"
 
 #include <vector>
