diff --git a/packages/alcotest-js/alcotest-js.1.9.1/opam b/packages/alcotest-js/alcotest-js.1.9.1/opam
index f67dd1a74f11..1f7428f59712 100644
--- a/packages/alcotest-js/alcotest-js.1.9.1/opam
+++ b/packages/alcotest-js/alcotest-js.1.9.1/opam
@@ -15,6 +15,7 @@ depends: [
   "js_of_ocaml-compiler" {>= "3.11.0"}
   "fmt" {with-test & >= "0.8.7"}
   "cmdliner" {with-test & >= "1.2.0"}
+  "conf-npm" {with-test}
   "odoc" {with-doc}
 ]
 dev-repo: "git+https://github.com/mirage/alcotest.git"
@@ -34,6 +35,7 @@ build: [
   ]
 ]
 x-maintenance-intent: [ "(latest)" ]
+x-ci-accept-failures: [ "debian-11" "ubuntu-22.04"]
 url {
   src:
     "https://github.com/mirage/alcotest/releases/download/1.9.1/alcotest-1.9.1.tbz"