diff --git a/dune-project b/dune-project
index 863be3b..f7d324b 100644
--- a/dune-project
+++ b/dune-project
@@ -1,4 +1,4 @@
-(lang dune 2.0)
+(lang dune 2.7)
 (name zmq)
 
 (generate_opam_files true)
diff --git a/zmq-async.opam b/zmq-async.opam
index b9375c5..6531b53 100644
--- a/zmq-async.opam
+++ b/zmq-async.opam
@@ -7,16 +7,17 @@ license: "MIT"
 homepage: "https://github.com/issuu/ocaml-zmq"
 bug-reports: "https://github.com/issuu/ocaml-zmq/issues"
 depends: [
-  "dune" {>= "2.0"}
+  "dune" {>= "2.7"}
   "ocaml" {>= "4.04.1"}
   "zmq" {= version}
   "async_unix" {>= "v0.11.0" & < "v0.16"}
   "async_kernel" {>= "v0.11.0" & < "v0.16"}
   "base" {>= "v0.11.0" & < "v0.16"}
   "ounit2" {with-test}
+  "odoc" {with-doc}
 ]
 build: [
-  ["dune" "subst"] {pinned}
+  ["dune" "subst"] {dev}
   [
     "dune"
     "build"
diff --git a/zmq-lwt.opam b/zmq-lwt.opam
index 8e775ed..3a53393 100644
--- a/zmq-lwt.opam
+++ b/zmq-lwt.opam
@@ -7,14 +7,15 @@ license: "MIT"
 homepage: "https://github.com/issuu/ocaml-zmq"
 bug-reports: "https://github.com/issuu/ocaml-zmq/issues"
 depends: [
-  "dune" {>= "2.0"}
+  "dune" {>= "2.7"}
   "ocaml" {>= "4.03.0"}
   "zmq" {= version}
   "lwt" {>= "2.6.0"}
   "ounit2" {with-test}
+  "odoc" {with-doc}
 ]
 build: [
-  ["dune" "subst"] {pinned}
+  ["dune" "subst"] {dev}
   [
     "dune"
     "build"
diff --git a/zmq.opam b/zmq.opam
index 347c33d..3b2734c 100644
--- a/zmq.opam
+++ b/zmq.opam
@@ -11,15 +11,16 @@ license: "MIT"
 homepage: "https://github.com/issuu/ocaml-zmq"
 bug-reports: "https://github.com/issuu/ocaml-zmq/issues"
 depends: [
-  "dune" {>= "2.0"}
+  "dune" {>= "2.7"}
   "ocaml" {>= "4.03.0"}
   "conf-zmq"
   "ounit2" {with-test}
   "dune-configurator"
+  "odoc" {with-doc}
 ]
 conflicts: ["ocaml-zmq"]
 build: [
-  ["dune" "subst"] {pinned}
+  ["dune" "subst"] {dev}
   [
     "dune"
     "build"