diff --git a/dune-project b/dune-project
index 4035343..f0a6568 100644
--- a/dune-project
+++ b/dune-project
@@ -34,7 +34,16 @@
 (package
  (name nanoev-posix)
  (synopsis "Use mtime+iomux (posix compliant) as a backend for nanoev")
- (depends ocaml dune base-unix iomux (mtime (>= 2.0)))
+ (depends
+  ocaml
+  dune
+  base-unix
+  iomux
+  (mtime
+   (>= 2.0))
+  (moonpool :with-test)
+  (trace :with-test)
+  (trace-tef :with-test))
  (tags
   (unix select async iomux nanoev)))
 
diff --git a/nanoev-posix.opam b/nanoev-posix.opam
index d113361..8b82637 100644
--- a/nanoev-posix.opam
+++ b/nanoev-posix.opam
@@ -13,6 +13,9 @@ depends: [
   "base-unix"
   "iomux"
   "mtime" {>= "2.0"}
+  "moonpool" {with-test}
+  "trace" {with-test}
+  "trace-tef" {with-test}
   "odoc" {with-doc}
 ]
 build: [