diff --git a/yaml.opam b/yaml.opam
index a783d42..256116c 100644
--- a/yaml.opam
+++ b/yaml.opam
@@ -30,7 +30,7 @@ depends: [
   "fmt" {with-test}
   "logs" {with-test}
   "mdx" {with-test & >= "2.1.0"}
-  "alcotest" {with-test}
+  "alcotest" {>="1.5.0" & with-test}
   "crowbar" {with-test}
   "junit_alcotest" {with-test}
   "ezjsonm" {with-test}