diff --git a/test/integration-socketio-client.coffee b/test/integration-socketio-client.coffee
index 8c5cd68..b4b8cb5 100644
--- a/test/integration-socketio-client.coffee
+++ b/test/integration-socketio-client.coffee
@@ -8,7 +8,7 @@ integration = require "./integration-common"
 # HACK: Delay before checking received messages to ensure all messages get delivered.
 # Increase this value if tests are failiing non-deterministically.
 # TODO: better way to detect all messages have been delivered?
-WAIT_TIME = 100
+WAIT_TIME = 200
 
 exports.initIntegrationTests = ->
 
diff --git a/test/integration-webdriver.coffee b/test/integration-webdriver.coffee
index 03044fb..4222c3f 100644
--- a/test/integration-webdriver.coffee
+++ b/test/integration-webdriver.coffee
@@ -9,7 +9,7 @@ integration = require "./integration-common"
 # HACK: Delay before checking received messages to ensure all messages get delivered.
 # Increase this value if tests are failiing non-deterministically.
 # TODO: better way to detect all messages have been delivered?
-WAIT_TIME = 200
+WAIT_TIME = 400
 
 DEFAULT_CONFIG =
   browser: