diff --git a/spdlog-1.14.1-fmt-11.0.2.patch b/spdlog-1.14.1-fmt-11.0.2.patch
new file mode 100644
index 0000000..e760ad8
--- /dev/null
+++ b/spdlog-1.14.1-fmt-11.0.2.patch
@@ -0,0 +1,24 @@
+From 06f92eae2bb37658561e0c87516c29e8e094f0a8 Mon Sep 17 00:00:00 2001
+From: Yao Zi <ziyao@disroot.org>
+Date: Mon, 8 Jul 2024 19:37:05 +0000
+Subject: [PATCH] make example compatible with fmt 11
+
+Since fmt 11.0.0, formatter::format() is required to be const. Mark
+format() method in example as const to stay compatible with fmt 11.
+---
+ example/example.cpp | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/example/example.cpp b/example/example.cpp
+index d4cfa1e29..267e42151 100644
+--- a/example/example.cpp
++++ b/example/example.cpp
+@@ -272,7 +272,7 @@ struct my_type {
+ #ifndef SPDLOG_USE_STD_FORMAT  // when using fmtlib
+ template <>
+ struct fmt::formatter<my_type> : fmt::formatter<std::string> {
+-    auto format(my_type my, format_context &ctx) -> decltype(ctx.out()) {
++    auto format(my_type my, format_context &ctx) const -> decltype(ctx.out()) {
+         return fmt::format_to(ctx.out(), "[my_type i={}]", my.i);
+     }
+ };
diff --git a/spdlog.spec b/spdlog.spec
index 7af0eef..8f4c3fa 100644
--- a/spdlog.spec
+++ b/spdlog.spec
@@ -1,6 +1,6 @@
 Name:          spdlog
 Version:       1.14.1
-Release:       1mamba
+Release:       2mamba
 Summary:       Fast C++ logging library
 Group:         System/Libraries
 Vendor:        openmamba
@@ -8,6 +8,7 @@ Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
 URL:           https://github.com/gabime/spdlog
 Source:        https://github.com/gabime/spdlog.git/v%{version}/spdlog-%{version}.tar.bz2
+Patch0:        spdlog-1.14.1-fmt-11.0.2.patch
 License:       MIT
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
@@ -16,6 +17,7 @@ BuildRequires: libgcc
 BuildRequires: libstdc++6-devel
 ## AUTOBUILDREQ-END
 BuildRequires: cmake
+BuildRequires: libfmt-devel >= 11.0.2
 Requires:      lib%{name} = %{?epoch:%epoch:}%{version}-%{release}
 
 %description
@@ -43,7 +45,7 @@ This package contains libraries and header files for developing applications tha
 
 %prep
 %setup -q
-#%patch 0 -p1 -b .fmt_external
+%patch 0 -p1 -b .fmt-11.0.2
 
 %build
 %cmake -d build \
@@ -74,6 +76,9 @@ This package contains libraries and header files for developing applications tha
 %doc README.md
 
 %changelog
+* Tue Sep 03 2024 Silvan Calarco <silvan.calarco@mambasoft.it> 1.14.1-2mamba
+- rebuilt with libfmt 11.0.2
+
 * Tue Apr 30 2024 Automatic Build System <autodist@openmamba.org> 1.14.1-1mamba
 - automatic version update by autodist