diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6cefa4f..b1baac0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -22,6 +22,9 @@ All official releases can be found on this repository's [releases page](https://
 
 ## Mediation 4
 
+### 4.8.4.0.0.0
+- This version of the adapter has been certified with ironSource SDK 8.4.0.
+
 ### 4.8.3.0.0.0
 - This version of the adapter has been certified with ironSource SDK 8.3.0.