diff --git a/fireflies/src/test/java/com/salesforce/apollo/fireflies/ChurnTest.java b/fireflies/src/test/java/com/salesforce/apollo/fireflies/ChurnTest.java
index 9825e45f6..64b249b3a 100644
--- a/fireflies/src/test/java/com/salesforce/apollo/fireflies/ChurnTest.java
+++ b/fireflies/src/test/java/com/salesforce/apollo/fireflies/ChurnTest.java
@@ -273,6 +273,7 @@ private void initialize() {
         AtomicBoolean frist = new AtomicBoolean(true);
         final var prefix = UUID.randomUUID().toString();
         final var gatewayPrefix = UUID.randomUUID().toString();
+        var executor = UnsafeExecutors.newVirtualThreadPerTaskExecutor();
         views = members.values().stream().map(node -> {
             DynamicContext<Participant> context = ctxBuilder.build();
             FireflyMetricsImpl metrics = new FireflyMetricsImpl(context.getId(),
@@ -282,14 +283,15 @@ private void initialize() {
                                                                                   .setMetrics(
                                                                                   new ServerConnectionCacheMetricsImpl(
                                                                                   frist.getAndSet(false) ? node0Registry
-                                                                                                         : registry)));
+                                                                                                         : registry)),
+                                                             executor);
             var gateway = new LocalServer(gatewayPrefix, node).router(ServerConnectionCache.newBuilder()
                                                                                            .setTarget(200)
                                                                                            .setMetrics(
                                                                                            new ServerConnectionCacheMetricsImpl(
                                                                                            frist.getAndSet(false)
-                                                                                           ? node0Registry
-                                                                                           : registry)));
+                                                                                           ? node0Registry : registry)),
+                                                                      executor);
             comms.start();
             communications.add(comms);
 
diff --git a/fireflies/src/test/java/com/salesforce/apollo/fireflies/MtlsTest.java b/fireflies/src/test/java/com/salesforce/apollo/fireflies/MtlsTest.java
index bc805d703..37cbf6ed7 100644
--- a/fireflies/src/test/java/com/salesforce/apollo/fireflies/MtlsTest.java
+++ b/fireflies/src/test/java/com/salesforce/apollo/fireflies/MtlsTest.java
@@ -118,6 +118,7 @@ public void smoke() throws Exception {
         var frist = new AtomicBoolean(true);
 
         var clientContextSupplier = clientContextSupplier();
+        var executor = UnsafeExecutors.newVirtualThreadPerTaskExecutor();
         views = members.stream().map(node -> {
             DynamicContext<Participant> context = ctxBuilder.build();
             FireflyMetricsImpl metrics = new FireflyMetricsImpl(context.getId(),
@@ -127,7 +128,7 @@ public void smoke() throws Exception {
             builder.setMetrics(new ServerConnectionCacheMetricsImpl(frist.getAndSet(false) ? node0Registry : registry));
             CertificateWithPrivateKey certWithKey = certs.get(node.getId());
             Router comms = new MtlsServer(node, ep, clientContextSupplier, serverContextSupplier(certWithKey)).router(
-            builder);
+            builder, executor);
             communications.add(comms);
             return new View(context, node, endpoints.get(node.getId()), EventValidation.NONE, Verifiers.NONE, comms,
                             parameters, DigestAlgorithm.DEFAULT, metrics);
diff --git a/fireflies/src/test/java/com/salesforce/apollo/fireflies/SwarmTest.java b/fireflies/src/test/java/com/salesforce/apollo/fireflies/SwarmTest.java
index 0e4f93dc6..51a88234d 100644
--- a/fireflies/src/test/java/com/salesforce/apollo/fireflies/SwarmTest.java
+++ b/fireflies/src/test/java/com/salesforce/apollo/fireflies/SwarmTest.java
@@ -230,19 +230,21 @@ private void initialize() {
             DynamicContext<Participant> context = ctxBuilder.build();
             FireflyMetricsImpl metrics = new FireflyMetricsImpl(context.getId(),
                                                                 frist.getAndSet(false) ? node0Registry : registry);
+            var executor = UnsafeExecutors.newVirtualThreadPerTaskExecutor();
             var comms = new LocalServer(prefix, node).router(ServerConnectionCache.newBuilder()
                                                                                   .setTarget(200)
                                                                                   .setMetrics(
                                                                                   new ServerConnectionCacheMetricsImpl(
                                                                                   frist.getAndSet(false) ? node0Registry
-                                                                                                         : registry)));
+                                                                                                         : registry)),
+                                                             executor);
             var gateway = new LocalServer(gatewayPrefix, node).router(ServerConnectionCache.newBuilder()
                                                                                            .setTarget(200)
                                                                                            .setMetrics(
                                                                                            new ServerConnectionCacheMetricsImpl(
                                                                                            frist.getAndSet(false)
-                                                                                           ? node0Registry
-                                                                                           : registry)));
+                                                                                           ? node0Registry : registry)),
+                                                                      executor);
             comms.start();
             communications.add(comms);