diff --git a/dune-project b/dune-project
index f3358597..6c6d89ef 100644
--- a/dune-project
+++ b/dune-project
@@ -115,7 +115,7 @@
   (ansi (>= 0.6.0))
   (capnp-rpc-unix (>= 1.2))
   (crunch (and (>= 3.2.0) :build))
-  (dream (>= 1.0.0alpha5))
+  (dream (>= 1.0.0~alpha5 ))
   (fmt (>= 0.8.9))
   (logs (>= 0.7.0))
   (lwt (>= 5.6.1))
diff --git a/ocaml-ci-web.opam b/ocaml-ci-web.opam
index 34de4734..de38a2bc 100644
--- a/ocaml-ci-web.opam
+++ b/ocaml-ci-web.opam
@@ -11,7 +11,7 @@ depends: [
   "ansi" {>= "0.6.0"}
   "capnp-rpc-unix" {>= "1.2"}
   "crunch" {>= "3.2.0" & build}
-  "dream" {>= "1.0.0alpha5"}
+  "dream" {>= "1.0.0~alpha5"}
   "fmt" {>= "0.8.9"}
   "logs" {>= "0.7.0"}
   "lwt" {>= "5.6.1"}