diff --git a/3rdparty/kfr b/3rdparty/kfr
index 5c16acbd61a9..3400128bd4aa 160000
--- a/3rdparty/kfr
+++ b/3rdparty/kfr
@@ -1 +1 @@
-Subproject commit 5c16acbd61a93823d5b5f8e006d3b3f87c6f6d04
+Subproject commit 3400128bd4aae050fe50ff33b041a2f2e8f67c4c
diff --git a/cmake/deps/kfr.cmake b/cmake/deps/kfr.cmake
index ba457dfcd4f9..2a4de079ab6c 100644
--- a/cmake/deps/kfr.cmake
+++ b/cmake/deps/kfr.cmake
@@ -16,6 +16,7 @@ endif()
 if(OSSIA_ENABLE_KFR)
   if(NOT TARGET kfr)
     add_subdirectory("${OSSIA_3RDPARTY_FOLDER}/kfr" "${CMAKE_CURRENT_BINARY_DIR}/kfr_build")
+    set_target_properties(kfr PROPERTIES UNITY_BUILD 0)
     set_target_properties(kfr_dft PROPERTIES UNITY_BUILD 0)
   endif()
 endif()
diff --git a/src/ossia/audio/fft.cpp b/src/ossia/audio/fft.cpp
index bf4fa950274a..848ba96fe990 100644
--- a/src/ossia/audio/fft.cpp
+++ b/src/ossia/audio/fft.cpp
@@ -186,17 +186,18 @@ namespace ossia
 {
 static_assert(sizeof(kfr::c64) == sizeof(fft_complex));
 static const constexpr auto fft_real_allocator = pod_allocator_avx2<kfr::f64>{};
-static const constexpr auto fft_cplx_allocator = pod_allocator_avx2<kfr::c64>{};
+
 static const constexpr auto alloc_real
     = [](std::size_t sz) { return fft_real_allocator.allocate(sz); };
+// FIXME KFR 6: no more pod
 static const constexpr auto alloc_complex
-    = [](std::size_t sz) { return fft_cplx_allocator.allocate(sz); };
+    = [](std::size_t sz) { return std::allocator<kfr::c64>{}.allocate(sz); };
 static const constexpr struct
 {
   void operator()(fft_real* p) const noexcept { fft_real_allocator.deallocate(p, 0); }
   void operator()(fft_complex* p) const noexcept
   {
-    fft_cplx_allocator.deallocate(reinterpret_cast<kfr::c64*>(p), 0);
+    std::allocator<kfr::c64>{}.deallocate(reinterpret_cast<kfr::c64*>(p), 0);
   }
 } fft_free;
 static const constexpr auto create_plan_r2c