diff --git a/lib/snmp/vsn.mk b/lib/snmp/vsn.mk
index 43f67a744e6e..ee2e633c69bb 100644
--- a/lib/snmp/vsn.mk
+++ b/lib/snmp/vsn.mk
@@ -18,6 +18,6 @@
 # %CopyrightEnd%
 
 APPLICATION = snmp
-SNMP_VSN = 4.21.3
+SNMP_VSN = 4.21.4
 PRE_VSN  =
 APP_VSN  = "$(APPLICATION)-$(SNMP_VSN)$(PRE_VSN)"