diff --git a/package/samba4/samba4.hash b/package/samba4/samba4.hash
index 144894fd60..86b11b4d1f 100644
--- a/package/samba4/samba4.hash
+++ b/package/samba4/samba4.hash
@@ -1,4 +1,4 @@
 # Locally calculated after checking pgp signature
-# https://download.samba.org/pub/samba/stable/samba-4.21.3.tar.asc
-sha256  ae2179a613e7a5d4088735ab100d4ca1cae0f92374d6307e22eaec13ad90125c  samba-4.21.3.tar.gz
+# https://download.samba.org/pub/samba/stable/samba-4.21.4.tar.asc
+sha256  50acf030db0ce6be1ee8a6c3a7636e54576c60a7f814e64becfa840f7b30eced  samba-4.21.4.tar.gz
 sha256  8ceb4b9ee5adedde47b31e975c1d90c73ad27b6b165a1dcd80c7c545eb65b903  COPYING
diff --git a/package/samba4/samba4.mk b/package/samba4/samba4.mk
index 70200279a4..ac3141f3d9 100644
--- a/package/samba4/samba4.mk
+++ b/package/samba4/samba4.mk
@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-SAMBA4_VERSION = 4.21.3
+SAMBA4_VERSION = 4.21.4
 SAMBA4_SITE = https://download.samba.org/pub/samba/stable
 SAMBA4_SOURCE = samba-$(SAMBA4_VERSION).tar.gz
 SAMBA4_INSTALL_STAGING = YES