diff --git a/foundation-models/openai/src/test/java/com/sap/ai/sdk/foundationmodels/openai/AiCoreOpenAiClientTest.java b/foundation-models/openai/src/test/java/com/sap/ai/sdk/foundationmodels/openai/AiCoreOpenAiClientTest.java
index b0f13b0dd..225e6dba2 100644
--- a/foundation-models/openai/src/test/java/com/sap/ai/sdk/foundationmodels/openai/AiCoreOpenAiClientTest.java
+++ b/foundation-models/openai/src/test/java/com/sap/ai/sdk/foundationmodels/openai/AiCoreOpenAiClientTest.java
@@ -122,7 +122,6 @@ void testDeleteResponseServiceCall() {
   }
 
   static void assertRetrieveResponse(@Nonnull final Response response) {
-    assertThat(response.isValid()).isTrue();
     assertThat(response.id()).isEqualTo("resp_07bcc4ce7d57e28d006a19115b9848819588503af93015f462");
     assertThat(response.model().asString()).isEqualTo("gpt-5-2025-08-07-dz-std");
     assertThat(response.status()).contains(ResponseStatus.COMPLETED);
@@ -148,7 +147,6 @@ static void assertRetrieveResponse(@Nonnull final Response response) {
   }
 
   static void assertCancelResponse(@Nonnull final Response response) {
-    assertThat(response.isValid()).isTrue();
     assertThat(response.id()).isEqualTo("resp_0960af38c651a868006a1911b68a448194b0918d31bfa6f586");
     assertThat(response.model().toString()).contains("gpt-5");
     assertThat(response.status()).contains(ResponseStatus.CANCELLED);
@@ -163,7 +161,6 @@ static void assertCancelResponse(@Nonnull final Response response) {
   }
 
   static void assertCreateResponse(@Nonnull final Response response) {
-    assertThat(response.isValid()).isTrue();
     assertThat(response.model().asString()).isEqualTo("gpt-5-2025-08-07-dz-std");
     assertThat(response.status()).contains(ResponseStatus.COMPLETED);
     assertThat(response.reasoning())
@@ -187,8 +184,6 @@ static void assertCreateResponse(@Nonnull final Response response) {
   }
 
   static void assertCreateResponseStreaming(@Nonnull final ResponseStreamEvent event) {
-    assertThat(event.isValid()).isTrue();
-
     if (event.isCreated()) {
       assertThat(event.asCreated().response()).isNotNull();
       assertThat(event.asCreated().response().model().asString())
diff --git a/pom.xml b/pom.xml
index 715dbb290..a3ced32b1 100644
--- a/pom.xml
+++ b/pom.xml
@@ -58,11 +58,11 @@
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <project.build.outputTimestamp>2025-04-03T13:23:00Z</project.build.outputTimestamp>
     <cloud-sdk.version>5.32.0</cloud-sdk.version>
-    <junit-jupiter.version>6.1.0</junit-jupiter.version>
+    <junit-jupiter.version>6.1.2</junit-jupiter.version>
     <wiremock.version>3.13.2</wiremock.version>
     <assertj-core.version>3.27.7</assertj-core.version>
     <slf4j.version>2.0.17</slf4j.version>
-    <checkstyle.version>13.6.0</checkstyle.version>
+    <checkstyle.version>13.8.0</checkstyle.version>
     <system-stubs.version>2.1.3</system-stubs.version>
     <surefire.version>3.5.6</surefire.version>
     <spring-ai.version>1.1.8</spring-ai.version>
@@ -71,11 +71,11 @@
     <mockito.version>5.23.0</mockito.version>
     <javaparser.version>3.28.2</javaparser.version>
     <jsonschema-generator.version>4.38.0</jsonschema-generator.version>
-    <jackson.version>2.22.0</jackson.version>
+    <jackson.version>2.22.1</jackson.version>
     <logback.version>1.6.0</logback.version>
     <commons-codec.version>1.22.0</commons-codec.version>
     <japicmp.version>0.26.1</japicmp.version>
-    <openai-java.version>4.41.0</openai-java.version>
+    <openai-java.version>4.45.0</openai-java.version>
     <!-- conflicts resolution -->
     <httpcomponents-core5.version>5.4.3</httpcomponents-core5.version>
     <micrometer.version>1.17.0</micrometer.version>