change minimum travis ci npm to v6

tweenjs · Feb 24, 2019 · d91b36f · d91b36f
1 parent e7e2198
commit d91b36f
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/.travis.yml b/.travis.yml
@@ -8,7 +8,7 @@ notifications:
 node_js:
   - "8"
 before_install:
-  - npm i -g npm@^5.0.0
+  - npm i -g npm@^6.0.0
 before_script:
   - npm prune
 script: