diff --git a/Dockerfile b/Dockerfile
index cdf017a41..f4702f79e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM node:9.5.0-alpine@sha256:50ae5f22356c5a0b0c0ea76d27a453b0baf577c61633aee25cea93dcacec1630
+FROM node:10.1-alpine
 LABEL maintainer="https://github.com/verdaccio/verdaccio"
 
 RUN apk --no-cache add openssl && \
diff --git a/circle.yml b/circle.yml
index 759667986..549f33895 100644
--- a/circle.yml
+++ b/circle.yml
@@ -1,6 +1,6 @@
 machine:
   environment:
-    YARN_VERSION: 1.3.2
+    YARN_VERSION: 1.6.0
     PATH: "${PATH}:${HOME}/.yarn/bin:${HOME}/${CIRCLE_PROJECT_REPONAME}/node_modules/.bin"
   node:
     version: 9
diff --git a/test/functional/uplink.auth.spec.js b/test/functional/uplink.auth.spec.js
index e3986c44d..a53247ee4 100644
--- a/test/functional/uplink.auth.spec.js
+++ b/test/functional/uplink.auth.spec.js
@@ -38,7 +38,9 @@ export default function () {
         });
       };
 
-      assert.throws(fnError, 'Auth invalid');
+      expect(function ( ) {
+        fnError();
+      }).toThrow(Error('Auth invalid'));
     });
 
     test('if assigns the header authorization', () => {
@@ -100,7 +102,9 @@ export default function () {
         })
       };
 
-      assert.throws(fnError, `Auth type 'null' not allowed`);
+      expect(function ( ) {
+        fnError();
+      }).toThrow(Error(`Auth type 'null' not allowed`));
     });
 
     test('set auth with NPM_TOKEN', () => {