diff --git a/.ocamlformat b/.ocamlformat
index 7818345..f33f722 100644
--- a/.ocamlformat
+++ b/.ocamlformat
@@ -1,4 +1,4 @@
-version = 0.26.2
+version = 0.27.0
 profile=conventional
 margin=80
 if-then-else=k-r
diff --git a/src/fuchsia/write/trace_fuchsia_write.ml b/src/fuchsia/write/trace_fuchsia_write.ml
index 1968c9b..7cf9bf7 100644
--- a/src/fuchsia/write/trace_fuchsia_write.ml
+++ b/src/fuchsia/write/trace_fuchsia_write.ml
@@ -1,6 +1,6 @@
 (** Write fuchsia events into buffers.
 
-Reference: https://fuchsia.dev/fuchsia-src/reference/tracing/trace-format *)
+    Reference: https://fuchsia.dev/fuchsia-src/reference/tracing/trace-format *)
 
 module Util = Util
 module Buf = Buf
@@ -37,7 +37,8 @@ end
 
 open struct
   (** maximum length as specified in the
-        {{: https://fuchsia.dev/fuchsia-src/reference/tracing/trace-format} spec} *)
+      {{:https://fuchsia.dev/fuchsia-src/reference/tracing/trace-format} spec}
+  *)
   let max_str_len = 32000
 
   (** Length of string, in words *)
@@ -68,8 +69,8 @@ module Str_ref = struct
       (1 lsl 15) lor size
 end
 
-(** [truncate_string s] truncates [s] to the maximum length allowed for
-    strings. If [s] is already short enough, no allocation is done. *)
+(** [truncate_string s] truncates [s] to the maximum length allowed for strings.
+    If [s] is already short enough, no allocation is done. *)
 let[@inline] truncate_string s : string =
   if String.length s <= max_str_len then
     s
diff --git a/src/tef/trace_tef.ml b/src/tef/trace_tef.ml
index 41938a8..a24f5a1 100644
--- a/src/tef/trace_tef.ml
+++ b/src/tef/trace_tef.ml
@@ -48,8 +48,8 @@ module Writer = struct
     must_close: bool;  (** Do we have to close the underlying channel [oc]? *)
     pid: int;
   }
-  (** A writer to a [out_channel]. It writes JSON entries in an array
-      and closes the array at the end. *)
+  (** A writer to a [out_channel]. It writes JSON entries in an array and closes
+      the array at the end. *)
 
   let create ~(mode : [ `Single | `Jsonl ]) ~out () : t =
     let jsonl = mode = `Jsonl in
@@ -237,9 +237,8 @@ let print_non_closed_spans_warning spans =
     !names;
   flush stderr
 
-(** Background thread, takes events from the queue, puts them
-    in context using local state, and writes fully resolved
-    TEF events to [out]. *)
+(** Background thread, takes events from the queue, puts them in context using
+    local state, and writes fully resolved TEF events to [out]. *)
 let bg_thread ~mode ~out (events : Event.t B_queue.t) : unit =
   block_signals ();
 
@@ -308,8 +307,8 @@ let bg_thread ~mode ~out (events : Event.t B_queue.t) : unit =
     if Span_tbl.length spans > 0 then print_non_closed_spans_warning spans;
     ()
 
-(** Thread that simply regularly "ticks", sending events to
-    the background thread so it has a chance to write to the file *)
+(** Thread that simply regularly "ticks", sending events to the background
+    thread so it has a chance to write to the file *)
 let tick_thread events : unit =
   block_signals ();
   try