diff --git a/opam.lock b/opam.lock
index 83c49d919..767bd7076 100644
--- a/opam.lock
+++ b/opam.lock
@@ -6,7 +6,6 @@ bin_prot = v0.9.0
 biniou = 1.0.13
 camlp4 = 4.04+1
 camlzip = 1.07
-camomile = 0.8.5
 cmdliner = 1.0.0
 conf-aclocal = 1.0.0
 conf-autoconf = 0.1
@@ -24,12 +23,8 @@ fieldslib = v0.9.0
 integers = 0.2.2
 jane-street-headers = v0.9.0
 javalib = 2.3.3
-jbuilder = 1.0+beta10
-lambda-term = 1.11
-lwt = 3.0.0
-lwt_react = 1.0.1
+jbuilder = 1.0+beta11
 menhir = 20170101
-merlin-extend = 0.3
 num = 0
 ocaml-compiler-libs = v0.9.0
 ocaml-migrate-parsetree = 1.0.1
@@ -66,14 +61,12 @@ ppx_sexp_conv = v0.9.0
 ppx_sexp_message = v0.9.0
 ppx_sexp_value = v0.9.0
 ppx_tools = 5.0
-ppx_tools_versioned = 5.0alpha
 ppx_traverse = v0.9.0
 ppx_traverse_builtins = v0.9.0
 ppx_type_conv = v0.9.0
 ppx_typerep_conv = v0.9.0
 ppx_variants_conv = v0.9.0
 re = 1.7.1
-react = 1.2.0
 result = 1.2
 sawja = 1.5.2
 sexplib = v0.9.1
@@ -81,8 +74,6 @@ spawn = v0.9.0
 stdio = v0.9.0
 topkg = 0.8.1
 typerep = v0.9.0
-utop = 1.19.3
 variantslib = v0.9.0
 xmlm = 1.2.0
 yojson = 1.3.3
-zed = 1.5