diff --git a/packages/monitoring-experiments.0.0.3~dev/opam b/packages/monitoring-experiments.0.0.3~dev/opam
index c8473c1..2401dee 100644
--- a/packages/monitoring-experiments.0.0.3~dev/opam
+++ b/packages/monitoring-experiments.0.0.3~dev/opam
@@ -21,7 +21,7 @@ depends: [
   "mirage-runtime"
 ]
 build: [
-  ["dune" "subst"] {pinned}
+  ["dune" "subst"] {dev}
   ["dune" "build" "-p" name "-j" jobs]
   ["dune" "runtest" "-p" name "-j" jobs] {with-test}
 ]