diff --git a/tiny_httpd.opam b/tiny_httpd.opam
index e69bb047..42bf0d4c 100644
--- a/tiny_httpd.opam
+++ b/tiny_httpd.opam
@@ -15,7 +15,7 @@ depends: [
   "ocaml" { >= "4.03.0" }
   "odoc" {with-doc}
   "qtest" { >= "2.9" & with-test}
-  "qcheck" {with-test}
+  "qcheck" {with-test & >= "0.9" }
 ]
 tags: [ "http" "thread" "server" "tiny_httpd" "http_of_dir" "simplehttpserver" ]
 homepage: "https://github.com/c-cube/tiny_httpd/"