diff --git a/dune-project b/dune-project
index c3ecfd3..973a0d7 100644
--- a/dune-project
+++ b/dune-project
@@ -14,6 +14,7 @@
  (depends
   (ocaml (>= 4.10))
   (atdgen (>= 2.7))
+  (atdgen-runtime (>= 2.0))
   (cmdliner (>= 1.1.0))
   dune-build-info
   (ocaml-lsp-server :with-dev-setup)
diff --git a/jsonschema2atd.opam b/jsonschema2atd.opam
index 59e14f2..02fd9bb 100644
--- a/jsonschema2atd.opam
+++ b/jsonschema2atd.opam
@@ -12,6 +12,7 @@ depends: [
   "dune" {>= "3.0"}
   "ocaml" {>= "4.10"}
   "atdgen" {>= "2.7"}
+  "atdgen-runtime" {>= "2.0"}
   "cmdliner" {>= "1.1.0"}
   "dune-build-info"
   "ocaml-lsp-server" {with-dev-setup}