diff --git a/CHANGELOG.md b/CHANGELOG.md
index c502dd7..c928578 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,5 @@
-### unreleased ###
+### 4.0.5: July 27th, 2021
+* Fix fallback autoloader compatibility with similarly named class names in other namespaces
 * Google Analytics module: support checking production environment type via `wp_get_environment_type()`
 
 ### 4.0.4: September 10th, 2020