build: pin yarn in CI to be node v4-compatible

square · May 7, 2019 · 78af9fc · 78af9fc
1 parent 71e31e3
commit 78af9fc
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/.travis.yml b/.travis.yml
@@ -7,6 +7,11 @@ node_js:
 
 cache: yarn
 
+install:
+  - npm install --global yarn@1.10.1
+  - yarn --version
+  - yarn install
+
 script:
   - yarn test