diff --git a/.travis.yml b/.travis.yml
index 63f0c84..8e24add 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,7 +4,7 @@ node_js:
   - "0.10"
   - "0.12"
   - "1.8"
-  - "2.3"
+  - "2.5"
 sudo: false
 before_install:
   # Setup Node.js version-specific dependencies
diff --git a/appveyor.yml b/appveyor.yml
index e53cdfb..db9da64 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -4,7 +4,7 @@ environment:
     - nodejs_version: "0.10"
     - nodejs_version: "0.12"
     - nodejs_version: "1.8"
-    - nodejs_version: "2.3"
+    - nodejs_version: "2.5"
 install:
   - ps: Install-Product node $env:nodejs_version
   - if "%nodejs_version%" equ "0.8" npm rm --save-dev istanbul