diff --git a/go.mod b/go.mod
index 5ca6f4d..ed13e03 100644
--- a/go.mod
+++ b/go.mod
@@ -12,6 +12,8 @@ require (
 	github.com/ipfs/go-log v0.0.1
 	github.com/ipfs/go-metrics-interface v0.0.1
 	github.com/multiformats/go-multihash v0.0.13
+	github.com/stretchr/testify v1.3.0
+	go.uber.org/atomic v1.6.0
 )
 
 go 1.13