diff --git a/gapi-ocaml.opam b/gapi-ocaml.opam
index cb9b0fb5..923675d8 100644
--- a/gapi-ocaml.opam
+++ b/gapi-ocaml.opam
@@ -15,7 +15,7 @@ depends: [
   "dune"
   "ocamlnet" {>= "4.1.4"}
   "ocurl"
-  "ounit" {with-test}
+  "ounit2" {with-test}
   "yojson"
 ]
 synopsis: "A simple OCaml client for Google Services"
diff --git a/src/test/dune b/src/test/dune
index 5d955f42..ef45f0ce 100644
--- a/src/test/dune
+++ b/src/test/dune
@@ -1,7 +1,7 @@
 (executable
  (name testSuite)
  (flags (:standard -w -3-6-23-27-32-33-50))
- (libraries threads oUnit gapi-ocaml))
+ (libraries threads ounit2 gapi-ocaml))
 
 (alias
  (name runtest)
diff --git a/src/test/testSuite.ml b/src/test/testSuite.ml
index 7851661e..150781f7 100644
--- a/src/test/testSuite.ml
+++ b/src/test/testSuite.ml
@@ -76,11 +76,11 @@ let build_suite_from_list test_list =
 
 let _ =
   let test_list = ref (core_tests @ model_tests) in
-  let ounit_specs =
+  let ounit2_specs =
     [
-      ("-verbose", Arg.Unit (fun _ -> ()), "See oUnit doc");
-      ("-only-test", Arg.String (fun _ -> ()), "See oUnit doc");
-      ("-list-test", Arg.String (fun _ -> ()), "See oUnit doc");
+      ("-verbose", Arg.Unit (fun _ -> ()), "See ounit2 doc");
+      ("-only-test", Arg.String (fun _ -> ()), "See ounit2 doc");
+      ("-list-test", Arg.String (fun _ -> ()), "See ounit2 doc");
     ]
   in
   let arg_specs =
@@ -100,9 +100,9 @@ let _ =
       ]
   in
   let _ =
-    Arg.parse (arg_specs @ ounit_specs)
+    Arg.parse (arg_specs @ ounit2_specs)
       (fun _ -> ())
-      ("Usage: " ^ Sys.argv.(0) ^ " [-service svc] [-all] [oUnit arguments]")
+      ("Usage: " ^ Sys.argv.(0) ^ " [-service svc] [-all] [ounit2 arguments]")
   in
   let _ =
     (* Reset argument counter, to let OUnit reparse arguments *)
