diff --git a/CHANGES.md b/CHANGES.md
index ff1f2c8..200d366 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,4 +1,4 @@
-# 6 (unreleased)
+# 6 (2023-12-29)
 
 ## `spatial`
 
diff --git a/dune-project b/dune-project
index 7acb1d7..bdfa156 100644
--- a/dune-project
+++ b/dune-project
@@ -12,7 +12,7 @@
 
 (maintainers "Thomas Letan <lthms@soap.coffee>")
 
-(version 6-dev)
+(version 6)
 
 (package
  (name spatial-shell)
diff --git a/spatial-dev.opam b/spatial-dev.opam
index 9857924..47c4ce5 100644
--- a/spatial-dev.opam
+++ b/spatial-dev.opam
@@ -1,6 +1,6 @@
 # This file is generated by dune, edit dune-project instead
 opam-version: "2.0"
-version: "6-dev"
+version: "6"
 synopsis:
   "Virtual package gathering developers dependencies for hacking the Spatial Shell project"
 maintainer: ["Thomas Letan <lthms@soap.coffee>"]
diff --git a/spatial-shell.opam b/spatial-shell.opam
index a7dc5ac..cab1dbd 100644
--- a/spatial-shell.opam
+++ b/spatial-shell.opam
@@ -1,6 +1,6 @@
 # This file is generated by dune, edit dune-project instead
 opam-version: "2.0"
-version: "6-dev"
+version: "6"
 synopsis:
   "Implementing a spatial model inspired by Material Shell and Paper WM, for Sway"
 maintainer: ["Thomas Letan <lthms@soap.coffee>"]