Update to 1.4.2 release of ONF ONL image

Change-Id: I4cc58f31747b30dd02d192562287488e997f0b31
diff --git a/defaults/main.yml b/defaults/main.yml
index b2bfcf8..8f71c1e 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -6,10 +6,10 @@
 
 onieboot_installers:
   - url: >-
-      https://github.com/opennetworkinglab/OpenNetworkLinux/releases/download/v1.4.1/ONL-wedge100bf-32qs_ONL-OS_2020-12-04.2146-66f5d94_AMD64_INSTALLED_INSTALLER
-    checksum: "sha256:b7356af8178fbcfce29563cffc0af4feec2c8e025b739c41bedbf6070c7e4201"
+      https://github.com/opennetworkinglab/OpenNetworkLinux/releases/download/v1.4.2/ONL-OS_2021-02-19.2136-9338f84_AMD64_INSTALLED_INSTALLER
+    checksum: "sha256:f36e71ab0b699aa4a71ef63aa7c4bc4d918267c4cedee9172713cd5ef6cc9aee"
 
 onieboot_default_installer: >-
-  ONL-wedge100bf-32qs_ONL-OS_2020-12-04.2146-66f5d94_AMD64_INSTALLED_INSTALLER
+  ONL-OS_2021-02-19.2136-9338f84_AMD64_INSTALLED_INSTALLER
 
 onieboot_web_root: "/srv/sites/default"