diff --git a/linol-lwt.opam b/linol-lwt.opam
index cf2cceab..84039de7 100644
--- a/linol-lwt.opam
+++ b/linol-lwt.opam
@@ -8,7 +8,7 @@ license: "MIT"
 homepage: "https://github.com/c-cube/linol"
 bug-reports: "https://github.com/c-cube/linol/issues"
 depends: [
-  "dune" {>= "2.0"}
+  "dune" {>= "3.0"}
   "yojson" {>= "1.6"}
   "linol" {= version}
   "base-unix"
@@ -16,7 +16,7 @@ depends: [
   "odoc" {with-doc}
 ]
 build: [
-  ["dune" "subst"] {pinned}
+  ["dune" "subst"] {dev}
   [
     "dune"
     "build"
diff --git a/src/eio/dune b/src/eio/dune
index 0552d80f..8b146804 100644
--- a/src/eio/dune
+++ b/src/eio/dune
@@ -1,5 +1,5 @@
 (library
  (name linol_eio)
  (public_name linol-eio)
- (libraries eio eio.unix linol.lso linol.jsonrpc)
+ (libraries eio eio.unix linol linol.lsp linol.jsonrpc)
  (flags :standard -warn-error -a))