diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2c92c6c0..f7ef9c56 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,10 @@
+# [2.40.0](https://github.com/amplitude/Amplitude-Android/compare/v2.39.9...v2.40.0) (2024-04-17)
+
+
+### Features
+
+* middleware session replay integration ([#399](https://github.com/amplitude/Amplitude-Android/issues/399)) ([28bbbe6](https://github.com/amplitude/Amplitude-Android/commit/28bbbe6ad2d0a0fe6424645e6105ecb8c2be7a4f))
+
 ## [2.39.9](https://github.com/amplitude/Amplitude-Android/compare/v2.39.8...v2.39.9) (2024-02-27)
 
 
diff --git a/gradle.properties b/gradle.properties
index 73058224..bc536299 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,4 +1,4 @@
-ARTIFACT_VERSION=2.39.9
+ARTIFACT_VERSION=2.40.0
 ARTIFACT_GROUP=com.amplitude
 
 POM_PACKAGING=aar