diff --git a/.gitmodules b/.gitmodules
index 85224a25..7c7aefdc 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -21,3 +21,6 @@
 [submodule "clients/external/fmidi"]
 	path = clients/external/fmidi
 	url = https://github.com/jpcima/fmidi.git
+[submodule "clients/external/fmt"]
+	path = clients/external/fmt
+	url = https://github.com/fmtlib/fmt.git
diff --git a/clients/CMakeLists.txt b/clients/CMakeLists.txt
index b012d618..68c4860b 100644
--- a/clients/CMakeLists.txt
+++ b/clients/CMakeLists.txt
@@ -10,7 +10,11 @@ sfizz_enable_lto_if_needed (sfizz_jack)
 install (TARGETS sfizz_jack DESTINATION ${CMAKE_INSTALL_BINDIR}
 COMPONENT "jack" OPTIONAL)
 
+add_library(fmidi-fmt INTERFACE)
+target_include_directories(fmidi-fmt INTERFACE "external/fmt/include")
+target_compile_definitions(fmidi-fmt INTERFACE "FMT_HEADER_ONLY=1")
 add_subdirectory(external/fmidi EXCLUDE_FROM_ALL)
+
 add_executable(sfizz_render sfizz_render.cpp)
 target_link_libraries(sfizz_render sfizz::sfizz fmidi)
 sfizz_enable_lto_if_needed (sfizz_render)
diff --git a/clients/external/fmidi b/clients/external/fmidi
index b7fe3a04..46a045c7 160000
--- a/clients/external/fmidi
+++ b/clients/external/fmidi
@@ -1 +1 @@
-Subproject commit b7fe3a04c2c0ae7256c8e41d86d68f2fead19394
+Subproject commit 46a045c7f327d827baeddd627604907fc29ef17e
diff --git a/clients/external/fmt b/clients/external/fmt
new file mode 160000
index 00000000..9bdd1596
--- /dev/null
+++ b/clients/external/fmt
@@ -0,0 +1 @@
+Subproject commit 9bdd1596cef1b57b9556f8bef32dc4a32322ef3e