diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 92ce26e8..aecc1551 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -118,6 +118,7 @@ jobs:
       - name: Set up cluster with Docker Compose
         run: docker compose up -d
         env:
+          KURRENTDB_LICENSE_KEY: ${{ secrets.KURRENTDB_TEST_LICENSE_KEY }}
           KURRENTDB_DOCKER_REGISTRY: ${{ needs.load_configuration.outputs.registry }}
           KURRENTDB_DOCKER_IMAGE: ${{ needs.load_configuration.outputs.image }}
           KURRENTDB_DOCKER_TAG: ${{ needs.load_configuration.outputs.tag }}
diff --git a/gradle.properties b/gradle.properties
index 75a70795..b8117f39 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -11,5 +11,5 @@ openTelemetrySemConvVersion=1.25.0-alpha
 
 # Test Dependencies
 slf4jNopVersion=1.7.29
-testcontainersVersion=1.20.6
+testcontainersVersion=1.21.4
 jacksonVersion=2.18.3
diff --git a/src/test/java/io/kurrent/dbclient/TelemetryTests.java b/src/test/java/io/kurrent/dbclient/TelemetryTests.java
index 5bfc0151..4ca5db59 100644
--- a/src/test/java/io/kurrent/dbclient/TelemetryTests.java
+++ b/src/test/java/io/kurrent/dbclient/TelemetryTests.java
@@ -18,7 +18,7 @@
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import java.util.ArrayList;
+import java.util.concurrent.CopyOnWriteArrayList;
 import java.util.List;
 import java.util.Objects;
 import java.util.function.Consumer;
@@ -30,20 +30,15 @@ public class TelemetryTests implements StreamsTracingInstrumentationTests, Persi
     static private Database database;
     static private Logger logger;
 
-    private final List<Consumer<ReadableSpan>> spanEndedHooks = new ArrayList<>();
-    private final List<ReadableSpan> recordedSpans = new ArrayList<>();
+    private static final List<Consumer<ReadableSpan>> spanEndedHooks = new CopyOnWriteArrayList<>();
+    private static final List<ReadableSpan> recordedSpans = new CopyOnWriteArrayList<>();
 
     @BeforeAll
     public static void setup() {
         database = DatabaseFactory.spawn();
         logger = LoggerFactory.getLogger(StreamsTests.class);
-    }
 
-    @BeforeEach
-    public void beforeEach() {
         GlobalOpenTelemetry.resetForTest();
-        spanEndedHooks.add(recordedSpans::add);
-
         OtlpGrpcSpanExporter otlpExporter = OtlpGrpcSpanExporter.builder()
                 .setEndpoint("http://localhost:4317")
                 .build();
@@ -62,6 +57,13 @@ public void beforeEach() {
                 .buildAndRegisterGlobal();
     }
 
+    @BeforeEach
+    public void beforeEach() {
+        spanEndedHooks.clear();
+        recordedSpans.clear();
+        spanEndedHooks.add(recordedSpans::add);
+    }
+
     @Override
     public void onOperationSpanEnded(String operation, Consumer<ReadableSpan> onSpanEnded) {
         spanEndedHooks.add(span -> {
diff --git a/vars.env b/vars.env
index a3ecdad9..8e9d2ff1 100644
--- a/vars.env
+++ b/vars.env
@@ -6,3 +6,5 @@ EVENTSTORE_TRUSTED_ROOT_CERTIFICATES_PATH=/etc/kurrentdb/certs/ca
 EVENTSTORE_DISCOVER_VIA_DNS=false
 EVENTSTORE_ENABLE_ATOM_PUB_OVER_HTTP=true
 EVENTSTORE_ADVERTISE_HOST_TO_CLIENT_AS=localhost
+EVENTSTORE_LICENSING__LICENSE_KEY=${KURRENTDB_LICENSE_KEY:-}
+EVENTSTORE_ALLOW_UNKNOWN_OPTIONS=true