diff --git a/core/go.mod b/core/go.mod
index 0800c86fc..d7c0e6c89 100644
--- a/core/go.mod
+++ b/core/go.mod
@@ -25,7 +25,7 @@ require (
 	github.com/mitchellh/go-homedir v1.1.0
 	github.com/olekukonko/tablewriter v0.0.1
 	github.com/shirou/gopsutil v2.19.6+incompatible
-	github.com/urfave/cli v1.20.0
+	github.com/urfave/cli v1.21.0
 	golang.org/x/crypto v0.0.0-20190701094942-4def268fd1a4
 	gopkg.in/src-d/go-git.v4 v4.12.0
 	upper.io/db.v3 v3.5.7+incompatible
diff --git a/core/go.sum b/core/go.sum
index 495ca48b6..9b91fc244 100644
--- a/core/go.sum
+++ b/core/go.sum
@@ -113,6 +113,7 @@ github.com/ugorji/go v1.1.4 h1:j4s+tAvLfL3bZyefP2SEWmhBzmuIlH/eqNuPdFPgngw=
 github.com/ugorji/go v1.1.4/go.mod h1:uQMGLiO92mf5W77hV/PUCpI3pbzQx3CRekS0kk+RGrc=
 github.com/urfave/cli v1.20.0 h1:fDqGv3UG/4jbVl/QkFwEdddtEDjh/5Ov6X+0B/3bPaw=
 github.com/urfave/cli v1.20.0/go.mod h1:70zkFmudgCuE/ngEzBv17Jvp/497gISqfk5gWijbERA=
+github.com/urfave/cli v1.21.0/go.mod h1:lxDj6qX9Q6lWQxIrbrT0nwecwUtRnhVZAJjJZrVUZZQ=
 github.com/xanzy/ssh-agent v0.2.1 h1:TCbipTQL2JiiCprBWx9frJ2eJlCYT00NmctrHxVAr70=
 github.com/xanzy/ssh-agent v0.2.1/go.mod h1:mLlQY/MoOhWBj+gOGMQkOeiEvkx+8pJSI+0Bx9h2kr4=
 golang.org/x/crypto v0.0.0-20190219172222-a4c6cb3142f2/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=