diff --git a/.travis.yml b/.travis.yml
index 4d6dbc85c..9f8f665c7 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,7 +7,7 @@ node_js:
   - "0.12"
   - "4"
   - "5"
-  - "6"
+  - "6.3"
 
 branches:
   only:
diff --git a/appveyor.yml b/appveyor.yml
index fa5cb7f75..4aab8e0b9 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -6,7 +6,7 @@ environment:
     - nodejs_version: "0.12"
     - nodejs_version: "4"
     - nodejs_version: "5"
-    - nodejs_version: "6"
+    - nodejs_version: "6.3"
 
 branches:
   only: