diff --git a/dune-project b/dune-project
index 212175b3..ee37f18e 100644
--- a/dune-project
+++ b/dune-project
@@ -23,6 +23,7 @@
   ("GNU Taler" MirageOS unikernel OCaml crypto))
  (depends
    (ocaml (>= 5.3))
+   base32
    crunch
    vif
    jsont
diff --git a/mte.opam b/mte.opam
index 00429e2f..bf5ea8eb 100644
--- a/mte.opam
+++ b/mte.opam
@@ -10,11 +10,21 @@ tags: ["GNU Taler" "MirageOS" "unikernel" "OCaml" "crypto"]
 depends: [
   "dune" {>= "3.20"}
   "ocaml" {>= "5.3"}
+  "base32"
   "crunch"
   "vif"
   "jsont"
   "cohttp"
   "fmt"
+  "bin"
+  "angstrom"
+  "zarith"
+  "mirage-crypto"
+  "digestif"
+  "duration"
+  "jsont"
+  "cohttp"
+  "ptime"
   "ocamlformat" {with-dev-setup}
   "odoc" {with-doc}
 ]