diff --git a/go.mod b/go.mod
index ffd6e10..ed97a3e 100644
--- a/go.mod
+++ b/go.mod
@@ -4,18 +4,21 @@ go 1.17
 
 require (
 	github.com/currantlabs/gatt v0.0.0-20161006170101-f949eac78f4e
-	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/eclipse/paho.mqtt.golang v1.3.5
 	github.com/go-ble/ble v0.0.0-20200120171844-0a73a9da88eb
+	github.com/pkg/errors v0.9.1
+	github.com/stretchr/testify v1.7.1
+)
+
+require (
+	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/gorilla/websocket v1.4.2 // indirect
 	github.com/mattn/go-colorable v0.1.4 // indirect
 	github.com/mattn/go-isatty v0.0.10 // indirect
 	github.com/mgutz/ansi v0.0.0-20170206155736-9520e82c474b // indirect
 	github.com/mgutz/logxi v0.0.0-20161027140823-aebf8a7d67ab // indirect
-	github.com/pkg/errors v0.9.1
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/raff/goble v0.0.0-20190909174656-72afc67d6a99 // indirect
-	github.com/stretchr/testify v1.7.0
 	golang.org/x/net v0.0.0-20200425230154-ff2c4b7c35a0 // 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 4a9db87..49fb06a 100644
--- a/go.sum
+++ b/go.sum
@@ -31,8 +31,8 @@ github.com/russross/blackfriday/v2 v2.0.1/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQD
 github.com/shurcooL/sanitized_anchor_name v1.0.0/go.mod h1:1NzhyTcUVG4SuEtjjoZeVRXNmyL/1OwPU0+IJeTBvfc=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
-github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
-github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/stretchr/testify v1.7.1 h1:5TQK59W5E3v0r2duFAb7P95B6hEeOyEnHRa8MjYSMTY=
+github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/urfave/cli v1.22.2/go.mod h1:Gos4lmkARVdJ6EkW0WaNv/tZAAMe9V7XWyB60NtXRu0=
 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=