diff --git a/package/mosquitto/mosquitto.hash b/package/mosquitto/mosquitto.hash
index aa6eeaf13a..23854bd401 100644
--- a/package/mosquitto/mosquitto.hash
+++ b/package/mosquitto/mosquitto.hash
@@ -1,5 +1,5 @@
 # Locally calculated after checking gpg signature
-sha256 bc71b38b5a26fc7cc772853e5607c657868db9f9a6d2b15e2b677649a0f85d20  mosquitto-1.6.5.tar.gz
+sha256 82676bf4201ff102be1511b56b041a9450fbbfeda40b21aa28be0fee56e8de17  mosquitto-1.6.6.tar.gz
 
 # License files
 sha256 cc77e25bafd40637b7084f04086d606f0a200051b61806f97c93405926670bc1  LICENSE.txt
diff --git a/package/mosquitto/mosquitto.mk b/package/mosquitto/mosquitto.mk
index fd8e6df26a..932855107e 100644
--- a/package/mosquitto/mosquitto.mk
+++ b/package/mosquitto/mosquitto.mk
@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-MOSQUITTO_VERSION = 1.6.5
+MOSQUITTO_VERSION = 1.6.6
 MOSQUITTO_SITE = https://mosquitto.org/files/source
 MOSQUITTO_LICENSE = EPL-1.0 or EDLv1.0
 MOSQUITTO_LICENSE_FILES = LICENSE.txt epl-v10 edl-v10