diff --git a/dune-project b/dune-project
index 4afe176e..d5a78af6 100644
--- a/dune-project
+++ b/dune-project
@@ -16,6 +16,7 @@
    (ocaml (>= "4.08"))
    (dune (>= "2.3"))
    ptime
+   (odoc :with-doc)
    (ocaml-protoc (>= 2.1)))
  (tags
   (instrumentation tracing opentelemetry datadog jaeger)))
@@ -27,6 +28,7 @@
    (ocaml (>= "4.08"))
    (dune (>= "2.3"))
    (opentelemetry (= :version))
+   (odoc :with-doc)
    lwt)
  (tags
   (instrumentation tracing opentelemetry datadog lwt)))
@@ -38,5 +40,6 @@
    (dune (>= "2.3"))
    (opentelemetry (= :version))
    (ocaml-protoc (>= 2.1))
+   (odoc :with-doc)
    ocurl)
   (synopsis "Collector client for opentelemetry, using http + ocurl"))
diff --git a/opentelemetry-client-ocurl.opam b/opentelemetry-client-ocurl.opam
index 7ac94d64..7c4924a1 100644
--- a/opentelemetry-client-ocurl.opam
+++ b/opentelemetry-client-ocurl.opam
@@ -12,6 +12,7 @@ depends: [
   "dune" {>= "2.3"}
   "opentelemetry" {= version}
   "ocaml-protoc" {>= "2.1"}
+  "odoc" {with-doc}
   "ocurl"
 ]
 build: [
diff --git a/opentelemetry-lwt.opam b/opentelemetry-lwt.opam
index ba5627b2..601fcf69 100644
--- a/opentelemetry-lwt.opam
+++ b/opentelemetry-lwt.opam
@@ -12,6 +12,7 @@ depends: [
   "ocaml" {>= "4.08"}
   "dune" {>= "2.3"}
   "opentelemetry" {= version}
+  "odoc" {with-doc}
   "lwt"
 ]
 build: [
diff --git a/opentelemetry.opam b/opentelemetry.opam
index 5cdabdf3..4c7190b1 100644
--- a/opentelemetry.opam
+++ b/opentelemetry.opam
@@ -12,6 +12,7 @@ depends: [
   "ocaml" {>= "4.08"}
   "dune" {>= "2.3"}
   "ptime"
+  "odoc" {with-doc}
   "ocaml-protoc" {>= "2.1"}
 ]
 build: [