diff --git a/.travis.yml b/.travis.yml
index 714f712..c8cf83c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -34,35 +34,35 @@ matrix:
       dist: trusty
       sudo: true
 
-    - rvm: 2.2.7
+    - rvm: 2.2.8
       env: EXECJS_RUNTIME=Node
-    - rvm: 2.2.7
+    - rvm: 2.2.8
       env: EXECJS_RUNTIME=Duktape
-    - rvm: 2.2.7
+    - rvm: 2.2.8
       env: EXECJS_RUNTIME=RubyRacer
-    - rvm: 2.2.7
+    - rvm: 2.2.8
       env: EXECJS_RUNTIME=MiniRacer
       dist: trusty
       sudo: true
 
-    - rvm: 2.3.4
+    - rvm: 2.3.5
       env: EXECJS_RUNTIME=Node
-    - rvm: 2.3.4
+    - rvm: 2.3.5
       env: EXECJS_RUNTIME=Duktape
-    - rvm: 2.3.4
+    - rvm: 2.3.5
       env: EXECJS_RUNTIME=RubyRacer
-    - rvm: 2.3.4
+    - rvm: 2.3.5
       env: EXECJS_RUNTIME=MiniRacer
       dist: trusty
       sudo: true
 
-    - rvm: 2.4.1
+    - rvm: 2.4.2
       env: EXECJS_RUNTIME=Node
-    - rvm: 2.4.1
+    - rvm: 2.4.2
       env: EXECJS_RUNTIME=Duktape
-    - rvm: 2.4.1
+    - rvm: 2.4.2
       env: EXECJS_RUNTIME=RubyRacer
-    - rvm: 2.4.1
+    - rvm: 2.4.2
       env: EXECJS_RUNTIME=MiniRacer
       dist: trusty
       sudo: true