diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2b8d853..712846f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## [v1.40](https://github.com/translation/rails/releases/tag/v1.40) (2024-02-09)
+
+#### Fixes (bugs & defects):
+
+ * Fix *more* bugs when YAML file is commented and the language key is still present.
+
 ## [v1.39](https://github.com/translation/rails/releases/tag/v1.39) (2024-02-09)
 
 #### Fixes (bugs & defects):
diff --git a/translation.gemspec b/translation.gemspec
index 9f582b7..934045e 100644
--- a/translation.gemspec
+++ b/translation.gemspec
@@ -4,7 +4,7 @@ Gem::Specification.new do |s|
   s.description   = 'Localize your app using either t(".keys") or _("source text") and type "rake translation:sync" to synchronize with your translators on Translation.io.'
   s.homepage      = 'https://translation.io'
   s.email         = 'contact@translation.io'
-  s.version       = '1.39'
+  s.version       = '1.40'
   s.authors       = ['Michael Hoste', 'Aurelien Malisart']
   s.license       = "MIT"
   s.require_paths = ["lib"]