diff --git a/dune-project b/dune-project
index 1e1e205..9b9678f 100644
--- a/dune-project
+++ b/dune-project
@@ -24,8 +24,7 @@
  (depends
   (ocaml
    (>= 4.08.0))
-  (dune
-   (>= 2.6))
+  dune
   (ptime
    (>= 1.1.0))
   (menhir
diff --git a/http-date.opam b/http-date.opam
index c7872d2..edadf70 100644
--- a/http-date.opam
+++ b/http-date.opam
@@ -9,7 +9,7 @@ homepage: "https://github.com/bikallem/http-date"
 bug-reports: "https://github.com/bikallem/http-date/issues"
 depends: [
   "ocaml" {>= "4.08.0"}
-  "dune" {>= "3.6" & >= "2.6"}
+  "dune" {>= "3.6"}
   "ptime" {>= "1.1.0"}
   "menhir" {>= "20220210"}
   "mdx" {>= "2.1.0" & with-test}