diff --git a/src/main/java/com/googlesource/gerrit/plugins/webhooks/Configuration.java b/src/main/java/com/googlesource/gerrit/plugins/webhooks/Configuration.java
index 5dda6b4..416b6ee 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/webhooks/Configuration.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/webhooks/Configuration.java
@@ -29,7 +29,7 @@
   private static final int DEFAULT_TIMEOUT_MS = 5000;
   private static final int DEFAULT_MAX_TRIES = 5;
   private static final int DEFAULT_RETRY_INTERVAL = 1000;
-  private static final int DEFAULT_THREAD_POOL_SIZE = 1;
+  private static final int DEFAULT_THREAD_POOL_SIZE = 2;
 
   private final int connectionTimeout;
   private final int socketTimeout;
diff --git a/src/main/java/com/googlesource/gerrit/plugins/webhooks/Module.java b/src/main/java/com/googlesource/gerrit/plugins/webhooks/Module.java
index 3c7a5db..00a6bfb 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/webhooks/Module.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/webhooks/Module.java
@@ -34,7 +34,8 @@
   protected void configure() {
     bind(ScheduledExecutorService.class)
         .annotatedWith(WebHooksExecutor.class)
-        .toProvider(ExecutorProvider.class);
+        .toProvider(ExecutorProvider.class)
+        .in(Scopes.SINGLETON);
     bind(CloseableHttpClient.class).toProvider(HttpClientProvider.class).in(Scopes.SINGLETON);
     factory(PostTask.Factory.class);
     factory(RemoteConfig.Factory.class);
diff --git a/src/main/resources/Documentation/config.md b/src/main/resources/Documentation/config.md
index 338a289..88ecdba 100644
--- a/src/main/resources/Documentation/config.md
+++ b/src/main/resources/Documentation/config.md
@@ -66,4 +66,4 @@
 
 @PLUGIN@.threadPoolSize
 :   Maximum number of threads used to send events to the target instance.
-    Defaults to 1.
+    Defaults to 2.
\ No newline at end of file