diff --git a/docs/misc/changelog.rst b/docs/misc/changelog.rst
index 3fb41de..1367775 100644
--- a/docs/misc/changelog.rst
+++ b/docs/misc/changelog.rst
@@ -4,7 +4,7 @@ Changelog
 ==========
 
 
-Release 1.4.0 (2021-10-23)
+Release 1.4.0 (2022-01-19)
 -------------------------------
 **Add Trust Region Policy Optimization (TRPO)  and Augmented Random Search (ARS) algorithms**