diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index e29099f56..3d1aaa55b 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "4.78.0"
+  ".": "4.78.1"
 }
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 63d6b31b4..5566229bd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## [4.78.1](https://github.com/openai/openai-java/compare/v4.78.0...v4.78.1) (2026-10-08)
+
+
+### Bug Fixes
+
+* **api:** correct custom voice creation parameters ([#1153](https://github.com/openai/openai-java/issues/1153)) ([43422a8](https://github.com/openai/openai-java/commit/43422a82de0ab4721ca0d3da8a59263fc107f0fe))
+* **ci:** reuse SDK compilation outputs across Java builds ([#1149](https://github.com/openai/openai-java/issues/1149)) ([a0dc1bc](https://github.com/openai/openai-java/commit/a0dc1bcfcfe0a3834bc85346e3f2e78ec2e74385))
+
 ## [4.78.0](https://github.com/openai/openai-java/compare/v4.77.0...v4.78.0) (2026-10-06)
 
 
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 7fe88b642..ece2eef8d 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -131,14 +131,14 @@ Then in your project's `build.gradle.kts` or `pom.xml`, reference the locally pu
 <!-- x-release-please-start-version -->
 
 ```kotlin
-implementation("com.openai:openai-java:4.78.0")
+implementation("com.openai:openai-java:4.78.1")
 ```
 
 ```xml
 <dependency>
   <groupId>com.openai</groupId>
   <artifactId>openai-java</artifactId>
-  <version>4.78.0</version>
+  <version>4.78.1</version>
 </dependency>
 ```
 
diff --git a/README.md b/README.md
index 9c43385de..3ff8121b8 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@ The REST API documentation can be found on [platform.openai.com](https://platfor
 ### Gradle
 
 ```kotlin
-implementation("com.openai:openai-java:4.78.0")
+implementation("com.openai:openai-java:4.78.1")
 ```
 
 ### Maven
@@ -24,7 +24,7 @@ implementation("com.openai:openai-java:4.78.0")
 <dependency>
   <groupId>com.openai</groupId>
   <artifactId>openai-java</artifactId>
-  <version>4.78.0</version>
+  <version>4.78.1</version>
 </dependency>
 ```
 
@@ -99,7 +99,7 @@ with normal AWS credentials:
 <!-- x-release-please-start-version -->
 
 ```kotlin
-implementation("com.openai:openai-java-bedrock:4.78.0")
+implementation("com.openai:openai-java-bedrock:4.78.1")
 ```
 
 <!-- x-release-please-end -->
diff --git a/bedrock.md b/bedrock.md
index d82784364..c3ac448d0 100644
--- a/bedrock.md
+++ b/bedrock.md
@@ -12,14 +12,14 @@ Use this artifact instead of adding AWS dependencies to the base OpenAI package
 <!-- x-release-please-start-version -->
 
 ```kotlin
-implementation("com.openai:openai-java-bedrock:4.78.0")
+implementation("com.openai:openai-java-bedrock:4.78.1")
 ```
 
 ```xml
 <dependency>
   <groupId>com.openai</groupId>
   <artifactId>openai-java-bedrock</artifactId>
-  <version>4.78.0</version>
+  <version>4.78.1</version>
 </dependency>
 ```
 
diff --git a/build.gradle.kts b/build.gradle.kts
index 59836f479..b0490cfff 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -49,7 +49,7 @@ repositories {
 
 allprojects {
     group = "com.openai"
-    version = "4.78.0" // x-release-please-version
+    version = "4.78.1" // x-release-please-version
 
     // Dokka 2.1.0 depends on Jackson 2.15.3 and jsoup 1.16.1. Keep its isolated build-tool
     // classpaths on secure versions without changing the SDK's published or compatibility-test