diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index b05a43d..4c5cdfa 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "6.4.1"
+  ".": "6.4.2"
 }
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 55c9c9b..8a949f0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [6.4.2](https://github.com/trycourier/courier-java/compare/v6.4.1...v6.4.2) (2026-08-29)
+
+
+### Bug Fixes
+
+* **api:** correct two Elemental field names the REST API rejects ([#151](https://github.com/trycourier/courier-java/issues/151)) ([499f1f0](https://github.com/trycourier/courier-java/commit/499f1f086b4339fd0f4dd9a49d0d72ef3dae0c42))
+
 ## [6.4.1](https://github.com/trycourier/courier-java/compare/v6.4.0...v6.4.1) (2026-08-28)
 
 
diff --git a/README.md b/README.md
index 829684d..027db3a 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@ The Courier Java SDK provides typed access to the Courier REST API from Java and
 ### Gradle
 
 ```kotlin
-implementation("com.courier:courier-java:6.4.1")
+implementation("com.courier:courier-java:6.4.2")
 ```
 
 ### Maven
@@ -18,7 +18,7 @@ implementation("com.courier:courier-java:6.4.1")
 <dependency>
   <groupId>com.courier</groupId>
   <artifactId>courier-java</artifactId>
-  <version>6.4.1</version>
+  <version>6.4.2</version>
 </dependency>
 ```
 
diff --git a/build.gradle.kts b/build.gradle.kts
index 4cba43d..c692d58 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -8,7 +8,7 @@ repositories {
 
 allprojects {
     group = "com.courier"
-    version = "6.4.1" // x-release-please-version
+    version = "6.4.2" // x-release-please-version
 }
 
 subprojects {