diff --git a/.travis.yml b/.travis.yml
index 788c5f5a..f58fbb6e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,9 +2,10 @@ language: node_js
 os:
  - linux
 node_js:
-  - "8.0"
+  - "9.1"
+  - "8.9"
   - "7.10"
-  - "6.10"
+  - "6.12"
   - "5.12"
   - "4.8"
   - "iojs-v3.3"
@@ -14,10 +15,9 @@ node_js:
   - "0.10"
   - "0.8"
 before_install:
-  - 'if [ "${TRAVIS_NODE_VERSION}" = "0.6" ]; then npm install -g npm@1.3 ; elif [ "${TRAVIS_NODE_VERSION}" != "0.9" ]; then case "$(npm --version)" in 1.*) npm install -g npm@1.4.28 ;; 2.*) npm install -g npm@2 ;; esac ; fi'
-  - 'if [ "${TRAVIS_NODE_VERSION%${TRAVIS_NODE_VERSION#[0-9]}}" = "0" ] || [ "${TRAVIS_NODE_VERSION:0:4}" = "iojs" ]; then npm install -g npm@4.5 ; elif [ "${TRAVIS_NODE_VERSION}" != "0.6" ] && [ "${TRAVIS_NODE_VERSION}" != "0.9" ]; then npm install -g npm; fi'
+  - 'nvm install-latest-npm'
 install:
-  - 'if [ "${TRAVIS_NODE_VERSION}" = "0.6" ]; then nvm install 0.8 && npm install -g npm@1.3 && npm install -g npm@1.4.28 && npm install -g npm@2 && npm install && nvm use "${TRAVIS_NODE_VERSION}"; else npm install; fi;'
+  - 'if [ "${TRAVIS_NODE_VERSION}" = "0.6" ] || [ "${TRAVIS_NODE_VERSION}" = "0.9" ]; then nvm install --latest-npm 0.8 && npm install && nvm use "${TRAVIS_NODE_VERSION}"; else npm install; fi;'
 script:
   - 'if [ -n "${PRETEST-}" ]; then npm run pretest ; fi'
   - 'if [ -n "${POSTTEST-}" ]; then npm run posttest ; fi'
@@ -29,8 +29,28 @@ env:
 matrix:
   fast_finish: true
   include:
-    - node_js: "node"
+    - node_js: "lts/*"
       env: PRETEST=true
+    - node_js: "9.0"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "8.8"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "8.7"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "8.6"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "8.5"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "8.4"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "8.3"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "8.2"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "8.1"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "8.0"
+      env: TEST=true ALLOW_FAILURE=true
     - node_js: "7.9"
       env: TEST=true ALLOW_FAILURE=true
     - node_js: "7.8"
@@ -51,6 +71,10 @@ matrix:
       env: TEST=true ALLOW_FAILURE=true
     - node_js: "7.0"
       env: TEST=true ALLOW_FAILURE=true
+    - node_js: "6.11"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "6.10"
+      env: TEST=true ALLOW_FAILURE=true
     - node_js: "6.9"
       env: TEST=true ALLOW_FAILURE=true
     - node_js: "6.8"
@@ -151,30 +175,8 @@ matrix:
       env: TEST=true ALLOW_FAILURE=true
     - node_js: "0.4"
       env: TEST=true ALLOW_FAILURE=true
-    ##- node_js: "7"
-      #env: TEST=true
-      #os: osx
-    #- node_js: "6"
-      #env: TEST=true
-      #os: osx
-    #- node_js: "5"
-      #env: TEST=true
-      #os: osx
-    #- node_js: "4"
-      #env: TEST=true
-      #os: osx
-    #- node_js: "iojs"
-      #env: TEST=true
-      #os: osx
-    #- node_js: "0.12"
-      #env: TEST=true
-      #os: osx
-    #- node_js: "0.10"
-      #env: TEST=true
-      #os: osx
-    #- node_js: "0.8"
-      #env: TEST=true
-      #os: osx
   allow_failures:
     - os: osx
     - env: TEST=true ALLOW_FAILURE=true
+    - env: COVERAGE=true
+    - node_js: "9.1"