diff --git a/go.mod b/go.mod
index 615a042..02740b6 100644
--- a/go.mod
+++ b/go.mod
@@ -1,3 +1,5 @@
 module tinygo.org/x/drivers
 
-go 1.13
+go 1.14
+
+require github.com/eclipse/paho.mqtt.golang v1.2.0
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..9dfbb0b
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,2 @@
+github.com/eclipse/paho.mqtt.golang v1.2.0 h1:1F8mhG9+aO5/xpdtFkW4SxOJB67ukuDC3t2y2qayIX0=
+github.com/eclipse/paho.mqtt.golang v1.2.0/go.mod h1:H9keYFcgq3Qr5OUJm/JZI/i6U7joQ8SYLhZwfeOo6Ts=