diff --git a/builder-web.opam b/builder-web.opam
index 1bfbd65..2322a43 100644
--- a/builder-web.opam
+++ b/builder-web.opam
@@ -18,7 +18,7 @@ depends: [
   "ocaml" {>= "4.10.0"}
   "dune" {>= "2.7.0"}
   "builder" {>= "0.2.0"}
-  "dream" {>= "1.0.0~alpha2"}
+  "dream" {= "1.0.0~alpha2"}
   "cstruct" {>= "6.0.0"}
   "bos"
   "hex"