diff --git a/antarest/__init__.py b/antarest/__init__.py
index e25f88f074..7ae1001d6a 100644
--- a/antarest/__init__.py
+++ b/antarest/__init__.py
@@ -9,7 +9,7 @@
 
 __version__ = "2.13.1"
 __author__ = "RTE, Antares Web Team"
-__date__ = "(unreleased)"
+__date__ = "2023-04-11"
 # noinspection SpellCheckingInspection
 __credits__ = "(c) Réseau de Transport de l’Électricité (RTE)"
 
diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index fd3b9b3539..f97a85131e 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -1,7 +1,7 @@
 Antares Web Changelog
 =====================
 
-v2.13.1 (unreleased)
+v2.13.1 (2023-04-11)
 --------------------
 
 ### Bug Fixes