diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index d0cf281..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,40 +0,0 @@
-language: node_js
-cache: npm
-stages:
-  - check
-  - test
-  - cov
-
-node_js:
-  - '10'
-
-os:
-  - linux
-  - osx
-  - windows
-
-script: npx nyc -s npm run test:node -- --bail
-after_success: npx nyc report --reporter=text-lcov > coverage.lcov && npx codecov
-
-jobs:
-  include:
-    - stage: check
-      script:
-        - npx aegir commitlint --travis
-        - npx aegir dep-check
-        - npm run lint
-
-    - stage: test
-      name: chrome
-      addons:
-        chrome: stable
-      script: npx aegir test -t browser -t webworker
-
-    - stage: test
-      name: firefox
-      addons:
-        firefox: latest
-      script: npx aegir test -t browser -t webworker -- --browsers FirefoxHeadless
-
-notifications:
-  email: false
diff --git a/index.js b/index.js
index a0ea056..8edf7f8 100644
--- a/index.js
+++ b/index.js
@@ -78,7 +78,7 @@ module.exports = multiformats => {
    * @param {Object} [options.tags] - An object whose keys are CBOR tag numbers and values are transform functions that accept a `value` and return a decoded representation of that `value`
    */
   const configureDecoder = (options) => {
-    let tags = defaultTags
+    const tags = defaultTags
 
     if (options) {
       if (typeof options.size === 'number') {
diff --git a/test/test-basics.js b/test/test-basics.js
index 2ffcc12..1d433a4 100644
--- a/test/test-basics.js
+++ b/test/test-basics.js
@@ -83,7 +83,6 @@ describe('util', () => {
     dagCBOR.configureDecoder()
   })
 
-
   test('.serialize and .deserialize object with slash as property', () => {
     const slashObject = { '/': true }
     const serialized = encode(slashObject)