diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 9561e061..c05e34f4 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -29,12 +29,14 @@ cache:
 
 test:
   script:
-    - npm install
+    - npm install -g yarn
+    - yarn
     - npm run unit
    
 build:
   script:
-    - npm install
+    - npm install -g yarn
+    - yarn
     - npm run build
   artifacts:
     paths: