diff --git a/go.mod b/go.mod
index 27d9f01..e6be4e2 100644
--- a/go.mod
+++ b/go.mod
@@ -4,7 +4,7 @@ go 1.18
 
 require (
 	github.com/currantlabs/gatt v0.0.0-20161006170101-f949eac78f4e
-	github.com/eclipse/paho.mqtt.golang v1.3.5
+	github.com/eclipse/paho.mqtt.golang v1.4.1
 	github.com/go-ble/ble v0.0.0-20200120171844-0a73a9da88eb
 	github.com/pkg/errors v0.9.1
 	github.com/stretchr/testify v1.7.1
@@ -20,6 +20,7 @@ require (
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/raff/goble v0.0.0-20190909174656-72afc67d6a99 // indirect
 	golang.org/x/net v0.0.0-20200425230154-ff2c4b7c35a0 // indirect
+	golang.org/x/sync v0.0.0-20210220032951-036812b2e83c // indirect
 	golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd // indirect
 	gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c // indirect
 )
diff --git a/go.sum b/go.sum
index 49fb06a..b3fbccb 100644
--- a/go.sum
+++ b/go.sum
@@ -7,6 +7,8 @@ github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/eclipse/paho.mqtt.golang v1.3.5 h1:sWtmgNxYM9P2sP+xEItMozsR3w0cqZFlqnNN1bdl41Y=
 github.com/eclipse/paho.mqtt.golang v1.3.5/go.mod h1:eTzb4gxwwyWpqBUHGQZ4ABAV7+Jgm1PklsYT/eo8Hcc=
+github.com/eclipse/paho.mqtt.golang v1.4.1 h1:tUSpviiL5G3P9SZZJPC4ZULZJsxQKXxfENpMvdbAXAI=
+github.com/eclipse/paho.mqtt.golang v1.4.1/go.mod h1:JGt0RsEwEX+Xa/agj90YJ9d9DH2b7upDZMK9HRbFvCA=
 github.com/go-ble/ble v0.0.0-20200120171844-0a73a9da88eb h1:YLbB9CgjUw1U9GxEqGvM2ld9YqHRoBeEEM7f8A8l9x0=
 github.com/go-ble/ble v0.0.0-20200120171844-0a73a9da88eb/go.mod h1:nwmyxHsP2cqjashMTTAl3A5t6V3vzev1rLgMb/pZ7jc=
 github.com/gorilla/websocket v1.4.2 h1:+/TMaTYc4QFitKJxsQ7Yye35DkWvkdLcvGKqM+x0Ufc=
@@ -37,6 +39,8 @@ github.com/urfave/cli v1.22.2/go.mod h1:Gos4lmkARVdJ6EkW0WaNv/tZAAMe9V7XWyB60NtX
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/net v0.0.0-20200425230154-ff2c4b7c35a0 h1:Jcxah/M+oLZ/R4/z5RzfPzGbPXnVDPkEDtf2JnuxN+U=
 golang.org/x/net v0.0.0-20200425230154-ff2c4b7c35a0/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
+golang.org/x/sync v0.0.0-20210220032951-036812b2e83c h1:5KslGYwFpkhGh+Q16bwMP3cOontH8FOep7tGV86Y7SQ=
+golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20191008105621-543471e840be/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=