diff --git a/security/nss/Makefile b/security/nss/Makefile
index c6f37513d58..233194783ce 100644
--- a/security/nss/Makefile
+++ b/security/nss/Makefile
@@ -1,7 +1,7 @@
 # Created by: Maxim Sobolev <sobomax@FreeBSD.org>
 
 PORTNAME=	nss
-PORTVERSION=	3.65
+PORTVERSION=	3.66
 CATEGORIES=	security
 MASTER_SITES=	MOZILLA/security/${PORTNAME}/releases/${DISTNAME:tu:C/[-.]/_/g}_RTM/src
 
diff --git a/security/nss/distinfo b/security/nss/distinfo
index da72dfe6ab5..ecfd5697eef 100644
--- a/security/nss/distinfo
+++ b/security/nss/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1620986463
-SHA256 (nss-3.65.tar.gz) = 32170f6c188212a78bf9fdacffa2eeed0d564ef8faae63fd8ae971b208e8c637
-SIZE (nss-3.65.tar.gz) = 82386222
+TIMESTAMP = 1622195443
+SHA256 (nss-3.66.tar.gz) = 89a79e3a756cf0ac9ba645f4d4c0fc58d4133134401fb0b6c8a74c420bb4cdc9
+SIZE (nss-3.66.tar.gz) = 82401896