diff --git a/EmulatorPkg/PlatformCI/.azurepipelines/Ubuntu-GCC5.yml b/EmulatorPkg/PlatformCI/.azurepipelines/Ubuntu-GCC5.yml
index 0e5f4d9961..17d62bb69e 100644
--- a/EmulatorPkg/PlatformCI/.azurepipelines/Ubuntu-GCC5.yml
+++ b/EmulatorPkg/PlatformCI/.azurepipelines/Ubuntu-GCC5.yml
@@ -17,7 +17,7 @@ jobs:
   - job: Platform_CI
     variables:
       package: 'EmulatorPkg'
-      vm_image: 'ubuntu-latest'
+      vm_image: 'ubuntu-18.04'
       should_run: false
       run_flags: "MAKE_STARTUP_NSH=TRUE"