diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 980ea052..f8007191 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.4.2"
+  ".": "0.4.3"
 }
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 768b21f0..dc0efe34 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## 0.4.3 (2026-02-07)
+
+Full Changelog: [v0.4.2...v0.4.3](https://github.com/openlayer-ai/openlayer-java/compare/v0.4.2...v0.4.3)
+
+### Chores
+
+* **internal:** upgrade AssertJ ([0b6e8bc](https://github.com/openlayer-ai/openlayer-java/commit/0b6e8bc73a46bf33531954d5cbe6ed03790cc302))
+
 ## 0.4.2 (2026-01-31)
 
 Full Changelog: [v0.4.1...v0.4.2](https://github.com/openlayer-ai/openlayer-java/compare/v0.4.1...v0.4.2)
diff --git a/README.md b/README.md
index fee99e78..180f8ee0 100644
--- a/README.md
+++ b/README.md
@@ -2,8 +2,8 @@
 
 <!-- x-release-please-start-version -->
 
-[![Maven Central](https://img.shields.io/maven-central/v/com.openlayer.api/openlayer-java)](https://central.sonatype.com/artifact/com.openlayer.api/openlayer-java/0.4.2)
-[![javadoc](https://javadoc.io/badge2/com.openlayer.api/openlayer-java/0.4.2/javadoc.svg)](https://javadoc.io/doc/com.openlayer.api/openlayer-java/0.4.2)
+[![Maven Central](https://img.shields.io/maven-central/v/com.openlayer.api/openlayer-java)](https://central.sonatype.com/artifact/com.openlayer.api/openlayer-java/0.4.3)
+[![javadoc](https://javadoc.io/badge2/com.openlayer.api/openlayer-java/0.4.3/javadoc.svg)](https://javadoc.io/doc/com.openlayer.api/openlayer-java/0.4.3)
 
 <!-- x-release-please-end -->
 
@@ -13,7 +13,7 @@ It is generated with [Stainless](https://www.stainless.com/).
 
 <!-- x-release-please-start-version -->
 
-The REST API documentation can be found on [openlayer.com](https://openlayer.com/docs/api-reference/rest/overview). Javadocs are available on [javadoc.io](https://javadoc.io/doc/com.openlayer.api/openlayer-java/0.4.2).
+The REST API documentation can be found on [openlayer.com](https://openlayer.com/docs/api-reference/rest/overview). Javadocs are available on [javadoc.io](https://javadoc.io/doc/com.openlayer.api/openlayer-java/0.4.3).
 
 <!-- x-release-please-end -->
 
@@ -24,7 +24,7 @@ The REST API documentation can be found on [openlayer.com](https://openlayer.com
 ### Gradle
 
 ```kotlin
-implementation("com.openlayer.api:openlayer-java:0.4.2")
+implementation("com.openlayer.api:openlayer-java:0.4.3")
 ```
 
 ### Maven
@@ -33,7 +33,7 @@ implementation("com.openlayer.api:openlayer-java:0.4.2")
 <dependency>
   <groupId>com.openlayer.api</groupId>
   <artifactId>openlayer-java</artifactId>
-  <version>0.4.2</version>
+  <version>0.4.3</version>
 </dependency>
 ```
 
diff --git a/build.gradle.kts b/build.gradle.kts
index 56609952..c2e2bf71 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -8,7 +8,7 @@ repositories {
 
 allprojects {
     group = "com.openlayer.api"
-    version = "0.4.2" // x-release-please-version
+    version = "0.4.3" // x-release-please-version
 }
 
 subprojects {
diff --git a/openlayer-java-client-okhttp/build.gradle.kts b/openlayer-java-client-okhttp/build.gradle.kts
index 285006c2..cec09a74 100644
--- a/openlayer-java-client-okhttp/build.gradle.kts
+++ b/openlayer-java-client-okhttp/build.gradle.kts
@@ -10,6 +10,6 @@ dependencies {
     implementation("com.squareup.okhttp3:logging-interceptor:4.12.0")
 
     testImplementation(kotlin("test"))
-    testImplementation("org.assertj:assertj-core:3.25.3")
+    testImplementation("org.assertj:assertj-core:3.27.7")
     testImplementation("com.github.tomakehurst:wiremock-jre8:2.35.2")
 }
diff --git a/openlayer-java-core/build.gradle.kts b/openlayer-java-core/build.gradle.kts
index 1369b835..77e27251 100644
--- a/openlayer-java-core/build.gradle.kts
+++ b/openlayer-java-core/build.gradle.kts
@@ -33,7 +33,7 @@ dependencies {
     testImplementation(kotlin("test"))
     testImplementation(project(":openlayer-java-client-okhttp"))
     testImplementation("com.github.tomakehurst:wiremock-jre8:2.35.2")
-    testImplementation("org.assertj:assertj-core:3.25.3")
+    testImplementation("org.assertj:assertj-core:3.27.7")
     testImplementation("org.junit.jupiter:junit-jupiter-api:5.9.3")
     testImplementation("org.junit.jupiter:junit-jupiter-params:5.9.3")
     testImplementation("org.junit-pioneer:junit-pioneer:1.9.1")
diff --git a/openlayer-java-proguard-test/build.gradle.kts b/openlayer-java-proguard-test/build.gradle.kts
index a587b621..66fcd92a 100644
--- a/openlayer-java-proguard-test/build.gradle.kts
+++ b/openlayer-java-proguard-test/build.gradle.kts
@@ -18,7 +18,7 @@ dependencies {
     testImplementation(project(":openlayer-java"))
     testImplementation(kotlin("test"))
     testImplementation("org.junit.jupiter:junit-jupiter-api:5.9.3")
-    testImplementation("org.assertj:assertj-core:3.25.3")
+    testImplementation("org.assertj:assertj-core:3.27.7")
     testImplementation("com.fasterxml.jackson.module:jackson-module-kotlin:2.14.0")
 }