diff --git a/databases/db46/Makefile b/databases/db46/Makefile
index 0a46cb5de7e5..8c0cdbcbdbc2 100644
--- a/databases/db46/Makefile
+++ b/databases/db46/Makefile
@@ -6,7 +6,7 @@
 #
 
 PORTNAME=	db46
-PORTVERSION=	4.6.21.3
+PORTVERSION=	4.6.21.4
 CATEGORIES=	databases
 MASTER_SITES=	http://download-west.oracle.com/berkeley-db/ \
 		http://download-east.oracle.com/berkeley-db/ \
@@ -16,7 +16,7 @@ DISTNAME=	db-${PORTVERSION:R}
 DIST_SUBDIR=	bdb
 
 PATCH_SITES=	http://www.oracle.com/technology/products/berkeley-db/db/update/${PORTVERSION:R}/
-PATCHFILES=	patch.4.6.21.1 patch.4.6.21.2 patch.4.6.21.3
+PATCHFILES=	patch.4.6.21.1 patch.4.6.21.2 patch.4.6.21.3 patch.4.6.21.4
 PATCH_DIST_STRIP=	-d .. -l
 # * patch.4.6.21.1: -----------------------------------------------------------
 # Fixes a race condition between checkpoint and DB->close which can result in
@@ -27,6 +27,10 @@ PATCH_DIST_STRIP=	-d .. -l
 # behavior in rare cases under load. [#16178]
 # * 4.6.21.3: -----------------------------------------------------------------
 # Replication clients should be able to open a sequence. [#16406]
+# * 4.6.21.4: -----------------------------------------------------------------
+# Fixes a bug which could lead to slow performance of internal init under
+# Replication Manager, as evidenced by "queue limit exceeded" messages in
+# verbose replication diagnostic output. [#15788]
 
 # I allow matthias.andree@gmx.de and all freebsd committer to do changes
 # to this package.
diff --git a/databases/db46/distinfo b/databases/db46/distinfo
index 24a317b4d148..bfc2571e1580 100644
--- a/databases/db46/distinfo
+++ b/databases/db46/distinfo
@@ -7,6 +7,9 @@ SIZE (bdb/patch.4.6.21.1) = 2475
 MD5 (bdb/patch.4.6.21.2) = 55074e53d3acae2dcbeae8322f96e522
 SHA256 (bdb/patch.4.6.21.2) = 9496a6cad44377ad1fab8c617f17c6f541e3423814663bfa81c3abb4001622d9
 SIZE (bdb/patch.4.6.21.2) = 892
-MD5 (bdb/patch.4.6.21.3) = 4ccd6c9e296fb448f7ffe352fe740507
-SHA256 (bdb/patch.4.6.21.3) = 3f531b18d88ce68ff080761cd62ef621444e675593aa23045d69121cd2c7c638
-SIZE (bdb/patch.4.6.21.3) = 1517
+MD5 (bdb/patch.4.6.21.3) = 7a6e11b54712caf752f9c4a52babe60c
+SHA256 (bdb/patch.4.6.21.3) = ad6951ec702e3d6cd539ba86d51b3b0436da43b17814c197c2d277fa5e1cb620
+SIZE (bdb/patch.4.6.21.3) = 1911
+MD5 (bdb/patch.4.6.21.4) = ae7d3d587355fe85b512ef09b9a77d19
+SHA256 (bdb/patch.4.6.21.4) = 98bb4499dc7408c27a8a855330972a69abd3b29d0ff3820d6e1da790593a5bb7
+SIZE (bdb/patch.4.6.21.4) = 41501