diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index 853c75d..850f0a9 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -1,3 +1,6 @@
+pool:
+  vmImage: ubuntu-18.04
+
 strategy:
   matrix:
     'Node 6':