diff --git a/go.mod b/go.mod
index c45212b6..4fbfdd97 100644
--- a/go.mod
+++ b/go.mod
@@ -6,6 +6,7 @@ require (
 	github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751 // indirect
 	github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d // indirect
 	github.com/aler9/gortsplib v0.0.0-20200507200122-6f72517d1732
+	github.com/stretchr/testify v1.4.0
 	gopkg.in/alecthomas/kingpin.v2 v2.2.6
 	gortc.io/sdp v0.17.0
 )