diff --git a/bootstrap/Hemlock.opam b/bootstrap/Hemlock.opam
index f696f4fd3..a93ae7640 100644
--- a/bootstrap/Hemlock.opam
+++ b/bootstrap/Hemlock.opam
@@ -19,7 +19,7 @@ dev-repo: "git+https://github.com/BranchTaken/Hemlock"
 tags: [ "languages" "org:BranchTaken" ]
 depends: [
   "ocaml" {>= "4.13.0"}
-  "dune" {>= "2.9.0"}
+  "dune" {>= "3.0.3"}
   "odoc" {build}
   "topkg" {build}
 ]