diff --git a/gradle.properties b/gradle.properties
index a57de92..e82b18a 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,4 +1,4 @@
 group=com.contentgrid.opa-java-client
 
-springBootVersion=3.5.13
+springBootVersion=4.0.5
 lombokVersion=1.18.44
\ No newline at end of file
diff --git a/opa-async-java-client/build.gradle b/opa-async-java-client/build.gradle
index 910114b..284f3c9 100644
--- a/opa-async-java-client/build.gradle
+++ b/opa-async-java-client/build.gradle
@@ -18,8 +18,8 @@ dependencies {
     testCompileOnly "org.projectlombok:lombok:${lombokVersion}"
     testAnnotationProcessor "org.projectlombok:lombok:${lombokVersion}"
 
-    testImplementation "org.testcontainers:junit-jupiter"
     testImplementation "org.assertj:assertj-core"
+    testImplementation "org.testcontainers:testcontainers-junit-jupiter"
     testImplementation "org.junit.jupiter:junit-jupiter-api"
 
     testRuntimeOnly "org.springframework.boot:spring-boot-testcontainers"
@@ -32,4 +32,4 @@ dependencies {
 
 test {
     useJUnitPlatform()
-}
\ No newline at end of file
+}
diff --git a/opa-async-java-client/src/test/java/com/contentgrid/opa/client/OpaClientIntegrationTests.java b/opa-async-java-client/src/test/java/com/contentgrid/opa/client/OpaClientIntegrationTests.java
index d89171a..9eee56a 100644
--- a/opa-async-java-client/src/test/java/com/contentgrid/opa/client/OpaClientIntegrationTests.java
+++ b/opa-async-java-client/src/test/java/com/contentgrid/opa/client/OpaClientIntegrationTests.java
@@ -28,9 +28,11 @@
 import lombok.Data;
 import lombok.EqualsAndHashCode;
 import lombok.extern.slf4j.Slf4j;
+import org.junit.jupiter.api.MethodOrderer.OrderAnnotation;
 import org.junit.jupiter.api.Nested;
 import org.junit.jupiter.api.Order;
 import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.TestMethodOrder;
 import org.testcontainers.containers.GenericContainer;
 import org.testcontainers.containers.wait.strategy.Wait;
 import org.testcontainers.junit.jupiter.Container;
@@ -68,6 +70,7 @@ void opaIsRunningInDocker() {
      * @see <a href="https://www.openpolicyagent.org/docs/latest/rest-api/#policy-api">REST Policy API</a>
      */
     @Nested
+    @TestMethodOrder(OrderAnnotation.class)
     class PolicyApiTests {
 
         private static final String PATH_EXAMPLE_1 = "fixtures/openpolicyagent.org/docs/policy/policies-example-1.rego";