diff --git a/base.opam b/base.opam
index 708dfb2..d897098 100644
--- a/base.opam
+++ b/base.opam
@@ -15,6 +15,13 @@ depends: [
   "sexplib0"
   "dune"                    {>= "3.11.0"}
   "dune-configurator"
+  "ppxlib"
+  "ppx_cold"
+  "ppx_jane"
+  "zarith"
+  "core_kernel"
+  "stdio"
+  "sexp_grammar"
 ]
 available: arch != "arm32" & arch != "x86_32"
 synopsis: "Full standard library replacement for OCaml"