chore: force node 10.12

.circleci/config.yml

@@ -7,7 +7,7 @@ jobs:
   install-test-linux:
     docker:
       # specify the version you desire here
-      - image: circleci/node:9-browsers
+      - image: circleci/node:10
 
       # Specify service dependencies here if necessary
       # CircleCI maintains a library of pre-built images
@@ -43,14 +43,26 @@ jobs:
         xcode: "9.0"
     steps:
       - checkout
-
       # Download and cache dependencies
       - restore_cache:
           keys:
           - v1-mac-dependencies-{{ checksum "package.json" }}
           # fallback to using the latest cache if no exact match is found
           - v1-mac-dependencies-
 
+      # Lock into Node.js version
+      - run:
+          name: Install Node.js
+          command: |
+            curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.35.3/install.sh | bash
+            export NVM_DIR="$HOME/.nvm"
+            [ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"
+            nvm install v10.19.0
+            nvm alias default v10.19.0
+            echo 'export NVM_DIR=${HOME}/.nvm' >> $BASH_ENV	
+            echo "[ -s '${NVM_DIR}/nvm.sh' ] && . '${NVM_DIR}/nvm.sh'" >> $BASH_ENV
+      - run: node --version
+      - run: npm --version
       - run: npm install
 
       - save_cache:
@@ -59,8 +71,6 @@ jobs:
           key: v1-mac-dependencies-{{ checksum "package.json" }}
 
       # run tests!
-      - run: node --version
-      - run: npm --version
       - run: npm test
 
 workflows:

appveyor.yml

@@ -7,7 +7,7 @@ branches:
     - master
 
 environment:
-  nodejs_version: "6"
+  nodejs_version: "10"
 
 cache:
   - node_modules -> package.json

package.json

@@ -11,6 +11,9 @@
     "lint": "standard --fix",
     "test": "standard && mocha"
   },
+  "engines" : { 
+    "node" : ">=10.12.0" 
+  },
   "author": "Kevin Sawicki",
   "license": "MIT",
   "dependencies": {