diff --git a/chromium-107-ffmpeg-5.x-duration.patch b/chromium-107-ffmpeg-5.x-duration.patch
new file mode 100644
index 0000000..ee01cd9
--- /dev/null
+++ b/chromium-107-ffmpeg-5.x-duration.patch
@@ -0,0 +1,16 @@
+diff -up chromium-107.0.5304.121/media/filters/audio_file_reader.cc.me chromium-107.0.5304.121/media/filters/audio_file_reader.cc
+--- chromium-107.0.5304.121/media/filters/audio_file_reader.cc.me	2022-12-17 08:27:12.204753071 +0100
++++ chromium-107.0.5304.121/media/filters/audio_file_reader.cc	2022-12-17 08:28:40.908211808 +0100
+@@ -243,10 +243,10 @@ bool AudioFileReader::OnNewFrame(
+   // silence from being output. In the case where we are also discarding some
+   // portion of the packet (as indicated by a negative pts), we further want to
+   // adjust the duration downward by however much exists before zero.
+-  if (audio_codec_ == AudioCodec::kAAC && frame->duration) {
++  if (audio_codec_ == AudioCodec::kAAC && frame->pkt_duration) {
+     const base::TimeDelta pkt_duration = ConvertFromTimeBase(
+         glue_->format_context()->streams[stream_index_]->time_base,
+-        frame->duration + std::min(static_cast<int64_t>(0), frame->pts));
++        frame->pkt_duration + std::min(static_cast<int64_t>(0), frame->pts));
+     const base::TimeDelta frame_duration =
+         base::Seconds(frames_read / static_cast<double>(sample_rate_));
+ 
diff --git a/chromium.spec b/chromium.spec
index 980fd23..2bc8816 100644
--- a/chromium.spec
+++ b/chromium.spec
@@ -26,8 +26,8 @@
 
 # enable|disble bootstrap
 %global bootstrap 0
-# workaround for broken gn on epel9
-%if 0%{?rhel} == 9
+# workaround for broken gn on epel 8/9
+%if 0%{?rhel} == 8 || 0%{?rhel} == 9
 %global bootstrap 1
 %endif
 
@@ -353,6 +353,9 @@ Patch111: chromium-116-constexpr.patch
 Patch112: chromium-117-el7-default_constructor.patch
 
 # system ffmpeg
+# need for old ffmpeg 5.x on epel9 and fedora 37
+Patch114: chromium-107-ffmpeg-5.x-duration.patch
+# disable the check
 Patch115: chromium-107-proprietary-codecs.patch
 # drop av_stream_get_first_dts from internal ffmpeg
 Patch116: chromium-112-ffmpeg-first_dts.patch
@@ -946,6 +949,9 @@ udev.
 %endif
 
 %if ! %{bundleffmpegfree}
+%if 0%{?rhel} == 9 || 0%{?fedora} == 37
+%patch -P114 -p1 -b .ffmpeg-5.x-duration
+%endif
 %patch -P115 -p1 -b .prop-codecs
 %patch -P116 -p1 -b .first_dts
 %patch -P117 -p1 -b .sigtrap_system_ffmpeg