diff --git a/packages/cohttp/cohttp.3.0.0/opam b/packages/cohttp/cohttp.3.0.0/opam
index 0d5cbe37e887..16993d148fa1 100644
--- a/packages/cohttp/cohttp.3.0.0/opam
+++ b/packages/cohttp/cohttp.3.0.0/opam
@@ -50,6 +50,7 @@ depends: [
   "jsonm" {build}
   "alcotest" {with-test}
 ]
+available: false
 build: [
   ["dune" "subst"] {pinned}
   ["dune" "build" "-p" name "-j" jobs]