diff --git a/.gitignore b/.gitignore
index 231dab4..d0d1932 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 _build
+_opam
 *.install
 *.merlin
diff --git a/.ocamlformat b/.ocamlformat
index b9022e8..7797929 100644
--- a/.ocamlformat
+++ b/.ocamlformat
@@ -1,2 +1,3 @@
-version=0.16.0
+version=0.18.0
+profile=conventional
 break-collection-expressions=wrap