diff --git a/CHANGES.md b/CHANGES.md
index 482f624..1352cb2 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,6 +1,6 @@
 [*] marks changes that break compatibility with previous versions.
 
-# Next version
+# 2022-06-15
 
 - `Numpy.to_bigarray_k` is continuation-passing-style version of `Numpy.to_bigarray`,
   allowing caller to convert Numpy arrays to bigarrays without having to know
diff --git a/pyml.opam b/pyml.opam
index 45db7eb..6315067 100644
--- a/pyml.opam
+++ b/pyml.opam
@@ -32,4 +32,4 @@ build: [
   ]
 ]
 dev-repo: "git+https://github.com/thierry-martinez/pyml.git"
-version: "20220325"
+version: "20220615"