diff --git a/deps/fluidsynth/include/fluidsynth/midi.h b/deps/fluidsynth/include/fluidsynth/midi.h
index 721b1a62..047dcfc7 100644
--- a/deps/fluidsynth/include/fluidsynth/midi.h
+++ b/deps/fluidsynth/include/fluidsynth/midi.h
@@ -246,7 +246,7 @@ enum fluid_player_status
 {
     FLUID_PLAYER_READY,           /**< Player is ready */
     FLUID_PLAYER_PLAYING,         /**< Player is currently playing */
-    FLUID_PLAYER_STOPPING,        /**< Player is stopping, but hasn't finished yet */
+    FLUID_PLAYER_STOPPING,        /**< Player is stopping, but hasn't finished yet (currently unused) */
     FLUID_PLAYER_DONE             /**< Player is finished playing */
 };
 
diff --git a/deps/fluidsynth/include/fluidsynth/seq.h b/deps/fluidsynth/include/fluidsynth/seq.h
index 549c9cfd..35c46eed 100644
--- a/deps/fluidsynth/include/fluidsynth/seq.h
+++ b/deps/fluidsynth/include/fluidsynth/seq.h
@@ -45,6 +45,14 @@ extern "C" {
  * @param event The event being received
  * @param seq The sequencer instance
  * @param data User defined data registered with the client
+ *
+ * @note @p time may not be of the same tick value as the scheduled event! In fact, depending on
+ * the sequencer's scale and the synth's sample-rate, @p time may a few ticks too late. Although this
+ * itself is inaudible, it is important to consider,
+ * when you use this callback for enqueuing additional events over and over again with
+ * fluid_sequencer_send_at(): If you enqueue new events with a relative tick value you might introduce
+ * a timing error, which causes your sequence to sound e.g. slower than it's supposed to be. If this is
+ * your use-case, make sure to enqueue events with an absolute tick value.
  */
 typedef void (*fluid_event_callback_t)(unsigned int time, fluid_event_t *event,
                                        fluid_sequencer_t *seq, void *data);
diff --git a/deps/fluidsynth/include/fluidsynth/version.h b/deps/fluidsynth/include/fluidsynth/version.h
index 8ad0cbb0..74803633 100644
--- a/deps/fluidsynth/include/fluidsynth/version.h
+++ b/deps/fluidsynth/include/fluidsynth/version.h
@@ -31,10 +31,10 @@ extern "C" {
  *
  * @{
  */
-#define FLUIDSYNTH_VERSION       "2.2.0"           /**< String constant of libfluidsynth version. */
+#define FLUIDSYNTH_VERSION       "2.2.1"           /**< String constant of libfluidsynth version. */
 #define FLUIDSYNTH_VERSION_MAJOR 2     /**< libfluidsynth major version integer constant. */
 #define FLUIDSYNTH_VERSION_MINOR 2     /**< libfluidsynth minor version integer constant. */
-#define FLUIDSYNTH_VERSION_MICRO 0     /**< libfluidsynth micro version integer constant. */
+#define FLUIDSYNTH_VERSION_MICRO 1     /**< libfluidsynth micro version integer constant. */
 
 FLUIDSYNTH_API void fluid_version(int *major, int *minor, int *micro);
 FLUIDSYNTH_API char* fluid_version_str(void);
diff --git a/deps/fluidsynth/lib/libfluidsynth.a b/deps/fluidsynth/lib/libfluidsynth.a
index eb361a43..7e3055ed 100644
Binary files a/deps/fluidsynth/lib/libfluidsynth.a and b/deps/fluidsynth/lib/libfluidsynth.a differ
diff --git a/deps/fluidsynth/lib/pkgconfig/fluidsynth.pc b/deps/fluidsynth/lib/pkgconfig/fluidsynth.pc
index 13814e2a..34775c1f 100644
--- a/deps/fluidsynth/lib/pkgconfig/fluidsynth.pc
+++ b/deps/fluidsynth/lib/pkgconfig/fluidsynth.pc
@@ -5,7 +5,7 @@ includedir=${prefix}/include
 
 Name: FluidSynth
 Description: Software SoundFont synth
-Version: 2.2.0
+Version: 2.2.1
 Requires.private: libinstpatch-1.0
 Libs: -L${libdir} -lfluidsynth
 Libs.private: -framework AudioUnit -framework CoreAudio -framework CoreMIDI