--- a/media/libcubeb/README_MOZILLA
+++ b/media/libcubeb/README_MOZILLA
@@ -1,8 +1,8 @@
 The source from this directory was copied from the cubeb
 git repository using the update.sh script.  The only changes
 made were those applied by update.sh and the addition of
 Makefile.in build files for the Mozilla build system.
 
 The cubeb git repository is: git://github.com/kinetiknz/cubeb.git
 
-The git commit ID used was 7712aaabfa140e8c7fe890e3f5f65dfe3fe58632 (2018-03-25 11:30:38 +0200)
+The git commit ID used was 7401fc25a9d87ed57d49648883e3e5658305c1cb (2018-03-26 16:54:01 +0200)

--- a/media/libcubeb/src/cubeb.c
+++ b/media/libcubeb/src/cubeb.c
@@ -63,17 +63,17 @@ int kai_init(cubeb ** context, char cons
 
 static int
 validate_stream_params(cubeb_stream_params * input_stream_params,
                        cubeb_stream_params * output_stream_params)
 {
   XASSERT(input_stream_params || output_stream_params);
   if (output_stream_params) {
     if (output_stream_params->rate < 1000 || output_stream_params->rate > 192000 ||
-        output_stream_params->channels < 1 || output_stream_params->channels > 8) {
+        output_stream_params->channels < 1) {
       return CUBEB_ERROR_INVALID_FORMAT;
     }
   }
   if (input_stream_params) {
     if (input_stream_params->rate < 1000 || input_stream_params->rate > 192000 ||
         input_stream_params->channels < 1 || input_stream_params->channels > 8) {
       return CUBEB_ERROR_INVALID_FORMAT;
     }