diff --git a/dune-project b/dune-project
index 3c109c58..f431941f 100644
--- a/dune-project
+++ b/dune-project
@@ -79,12 +79,9 @@
    (>= "4.08"))
   (opentelemetry
    (= :version))
-  (cohttp-lwt-unix :with-test)
+  (cohttp-eio :with-test)
   (odoc :with-doc)
-  (lwt
-   (>= "5.3"))
-  (lwt_ppx
-   (>= "2.0"))
+  eio
   (alcotest :with-test))
  (tags
   (instrumentation tracing opentelemetry datadog lwt)))
@@ -176,11 +173,7 @@
   (opentelemetry
    (= :version))
   (odoc :with-doc)
-  (lwt
-   (>= "5.3"))
-  (lwt_ppx
-   (>= "2.0"))
-  cohttp-lwt
-  cohttp-lwt-unix
+  cohttp-eio
+  eio_main
   (alcotest :with-test))
  (synopsis "Collector client for opentelemetry, using cohttp + eio"))
diff --git a/opentelemetry-client-cohttp-eio.opam b/opentelemetry-client-cohttp-eio.opam
index 4c24be3d..7bf13158 100644
--- a/opentelemetry-client-cohttp-eio.opam
+++ b/opentelemetry-client-cohttp-eio.opam
@@ -17,10 +17,8 @@ depends: [
   "mtime" {>= "1.4"}
   "opentelemetry" {= version}
   "odoc" {with-doc}
-  "lwt" {>= "5.3"}
-  "lwt_ppx" {>= "2.0"}
-  "cohttp-lwt"
-  "cohttp-lwt-unix"
+  "cohttp-eio"
+  "eio_main"
   "alcotest" {with-test}
 ]
 build: [
diff --git a/opentelemetry-eio.opam b/opentelemetry-eio.opam
index f0986993..7c95fece 100644
--- a/opentelemetry-eio.opam
+++ b/opentelemetry-eio.opam
@@ -16,10 +16,9 @@ depends: [
   "dune" {>= "2.9"}
   "ocaml" {>= "4.08"}
   "opentelemetry" {= version}
-  "cohttp-lwt-unix" {with-test}
+  "cohttp-eio" {with-test}
   "odoc" {with-doc}
-  "lwt" {>= "5.3"}
-  "lwt_ppx" {>= "2.0"}
+  "eio"
   "alcotest" {with-test}
 ]
 build: [
diff --git a/src/client-cohttp-eio/dune b/src/client-cohttp-eio/dune
index d9369c20..d3a94901 100644
--- a/src/client-cohttp-eio/dune
+++ b/src/client-cohttp-eio/dune
@@ -2,13 +2,11 @@
  (name opentelemetry_client_cohttp_eio)
  (public_name opentelemetry-client-cohttp-eio)
  (synopsis "Opentelemetry collector using cohttp+eio+unix")
- (preprocess
-  (pps lwt_ppx))
  (libraries
   opentelemetry
-  lwt
-  cohttp-lwt
-  cohttp-lwt-unix
+  eio
+  cohttp-eio
+  eio_main
   pbrt
   mtime
   mtime.clock.os))