Add missing severity levels
diff --git a/salt/files/heka.toml b/salt/files/heka.toml
index 08a5be6..529778a 100644
--- a/salt/files/heka.toml
+++ b/salt/files/heka.toml
@@ -14,8 +14,12 @@
 [Sandbox_salt_minion.severity_map]
 DEBUG = 7
 INFO = 6
+NOTICE = 5
 WARNING = 4
 ERROR = 3
+CRITICAL = 2
+ALERT = 1
+EMERGENCY = 0
 
 [Sandbox_salt_minion.message_fields]
 Module = "%Module%"