diff --git a/CHANGELOG.md b/CHANGELOG.md
index ac08a33..e18b348 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,8 @@ Note: Breaking changes between versions are indicated by "💥".
 
 ## Unreleased
 
+## v12.1.5 (2021-10-25)
+
 - 💥[Improvement] Change the `settheme` command such that, by default, a custom theme is assigned to the LMS and the CMS, both in production and development mode.
 
 ## v12.1.4 (2021-10-11)
diff --git a/tutor/__about__.py b/tutor/__about__.py
index 2da2ef6..5372497 100644
--- a/tutor/__about__.py
+++ b/tutor/__about__.py
@@ -2,7 +2,7 @@ import os
 
 # Increment this version number to trigger a new release. See
 # docs/tutor.html#versioning for information on the versioning scheme.
-__version__ = "12.1.4"
+__version__ = "12.1.5"
 
 # The version suffix will be appended to the actual version, separated by a
 # dash. Use this suffix to differentiate between the actual released version and