wrong yarn command

johnnyreilly · johnnyreilly · commit 0100a003782c · 2018-02-06T07:16:58.000Z
diff --git a/.travis.yml b/.travis.yml
@@ -4,7 +4,7 @@ node_js:
 install:
   - yarn install
   - yarn build
-  - yarn install $WEBPACK -D
+  - yarn add $WEBPACK -D
 # Test against multiple webpack versions
 env:
   - WEBPACK=webpack@4.0.0-beta.0
