diff --git a/CHANGES.md b/CHANGES.md
new file mode 100644
index 0000000..d2bca57
--- /dev/null
+++ b/CHANGES.md
@@ -0,0 +1,3 @@
+### v1.0.0 2023-11-15 Paris (France)
+
+- First release of YOCaml
diff --git a/tests/dune b/tests/dune
index 8bae91e..8b59e21 100644
--- a/tests/dune
+++ b/tests/dune
@@ -1,3 +1,4 @@
 (test
  (name yocaml_test)
+ (package yocaml_yaml)
  (libraries alcotest preface yocaml yocaml_yaml))
diff --git a/yocaml_yaml.opam b/yocaml_yaml.opam
index 12abb73..945e603 100644
--- a/yocaml_yaml.opam
+++ b/yocaml_yaml.opam
@@ -27,4 +27,6 @@ depends: [
   "preface" { >= "1.0.0" }
   "yaml" { >= "2.1.0" }
   "yocaml" {= version}
+  "alcotest" {with-test}
 ]
+conflicts: [ "result" {< "1.5"} ]