[DO NOT MERGE] Update Platform Security String to 2019-03-01 for nyc-dev Bug:122541777
diff --git a/core/version_defaults.mk b/core/version_defaults.mk
index 7b5dfd4..4ad08d3 100644
--- a/core/version_defaults.mk
+++ b/core/version_defaults.mk
@@ -114,7 +114,7 @@
     #  It must be of the form "YYYY-MM-DD" on production devices.
     #  It must match one of the Android Security Patch Level strings of the Public Security Bulletins.
     #  If there is no $PLATFORM_SECURITY_PATCH set, keep it empty.
-    PLATFORM_SECURITY_PATCH := 2018-05-01
+    PLATFORM_SECURITY_PATCH := 2019-03-01
 endif
 
 ifeq "" "$(PLATFORM_BASE_OS)"