diff --git a/eng/pipelines/libraries/enterprise/linux.yml b/eng/pipelines/libraries/enterprise/linux.yml
index 754b533564e3f4..22acf5f9ce5a6e 100644
--- a/eng/pipelines/libraries/enterprise/linux.yml
+++ b/eng/pipelines/libraries/enterprise/linux.yml
@@ -19,7 +19,7 @@ pr:
       - src/libraries/System.Net.Security/*
 
 pool:
-  vmImage: 'ubuntu-16.04'
+  vmImage: 'ubuntu-18.04'
 
 variables:
   - template: ../variables.yml