diff --git a/learn-ocaml-client.opam b/learn-ocaml-client.opam
index 247b10a1d..a59f0b69a 100644
--- a/learn-ocaml-client.opam
+++ b/learn-ocaml-client.opam
@@ -22,7 +22,7 @@ depends: [
   "cohttp-lwt-unix" {>= "2.0.0"}
   "cstruct" {>= "3.3.0"}
   "digestif" {>= "0.7.1"}
-  "dune" {>= "1.11.4"}
+  "dune" {>= "2.3.0"}
   "ezjsonm"
   "gg"
   "ipaddr" {= "2.8.0" }
diff --git a/learn-ocaml.opam b/learn-ocaml.opam
index f452fa3e3..b7b0cfefe 100644
--- a/learn-ocaml.opam
+++ b/learn-ocaml.opam
@@ -24,7 +24,7 @@ depends: [
   "conf-git"
   "decompress" {= "0.8.1"}
   "digestif" {>= "0.7.1"}
-  "dune" {>= "1.11.4"}
+  "dune" {>= "2.3.0"}
   "easy-format" {>= "1.3.0" }
   "ezjsonm"
   "ipaddr" {>= "2.8.0" }