diff --git a/CHANGES.md b/CHANGES.md
index 1282398..e35051f 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,3 +1,10 @@
+### v0.5.0 2023-10-31 Paris (France)
+
+- Fix unsafe access causing SIGSEGV (@edwintorok, #43)
+- Fix compulation of the confidence indicator (@edwintorok, @lindig, @dinosaure, #45)
+- Upgrade monotonic clock detection (@dra27, #44)
+- Fix double-free when we use resources (@edwintorok, @dinosaure, #47)
+
 ### v0.4.0 2023-03-30 Paris (France)
 
 - Fix the support of OCaml 5.0 (@avsm, #38)
diff --git a/mperf.opam b/mperf.opam
index 0988432..e8245d2 100644
--- a/mperf.opam
+++ b/mperf.opam
@@ -6,12 +6,12 @@ authors:      [ "Vincent Bernardoff <vincent.bernardoff@ocamlpro.com>" "Pierre C
 homepage:     "http://github.com/dinosaure/bechamel"
 dev-repo:     "git://github.com/dinosaure/bechamel"
 bug-reports:  "http://github.com/dinosaure/bechamel/issues"
-license:      "GPL-2.0"
+license:      "GPL-2.0-only"
 synopsis:     "Bindings to Linux perf's metrics"
 description: """Simple binding to Linux perf's metrics"""
 
 build: [
-  [ "dune" "subst" ] {pinned}
+  [ "dune" "subst" ] {dev}
   [ "dune" "build" "-p" name "-j" jobs ]
 ]