diff --git a/glide.go b/glide.go
index 899ab1c..ba23151 100644
--- a/glide.go
+++ b/glide.go
@@ -155,8 +155,9 @@
 					Usage: "Disable interactive prompts.",
 				},
 			},
-			Action: func(c *cli.Context) {
+			Action: func(c *cli.Context) error {
 				action.Create(".", c.Bool("skip-import"), c.Bool("non-interactive"))
+				return nil
 			},
 		},
 		{
@@ -166,8 +167,9 @@
 			Description: `Glide will analyze a projects glide.yaml file and the imported
 		projects to find ways the glide.yaml file can potentially be improved. It
 		will then interactively make suggestions that you can skip or accept.`,
-			Action: func(c *cli.Context) {
+			Action: func(c *cli.Context) error {
 				action.ConfigWizard(".")
+				return nil
 			},
 		},
 		{
@@ -223,7 +225,7 @@
 					Usage: "Disable interactive prompts.",
 				},
 			},
-			Action: func(c *cli.Context) {
+			Action: func(c *cli.Context) error {
 				if len(c.Args()) < 1 {
 					fmt.Println("Oops! Package name is required.")
 					os.Exit(1)
@@ -241,6 +243,7 @@
 				packages := []string(c.Args())
 				//insecure := c.Bool("insecure")
 				action.Get(packages, inst, c.Bool("strip-vendor"), c.Bool("non-interactive"))
+				return nil
 			},
 		},
 		{
@@ -471,7 +474,7 @@
 					Usage: "Resolve dependencies in test files.",
 				},
 			},
-			Action: func(c *cli.Context) {
+			Action: func(c *cli.Context) error {
 				if c.Bool("resolve-current") {
 					util.ResolveCurrent = true
 					msg.Warn("Only resolving dependencies for the current OS/Arch")
@@ -483,6 +486,7 @@
 				installer.Home = gpath.Home()
 
 				action.Update(installer, c.Bool("strip-vendor"), []string(c.Args()))
+				return nil
 			},
 		},
 		{
@@ -494,8 +498,9 @@
    It ignores testdata/ and directories that begin with . or _. Packages in
    vendor/ are only included if they are referenced by the main project or
    one of its dependencies.`,
-			Action: func(c *cli.Context) {
+			Action: func(c *cli.Context) error {
 				action.Tree(".", false)
+				return nil
 			},
 		},
 		{
@@ -508,8 +513,9 @@
 
    Directories that begin with . or _ are ignored, as are testdata directories. Packages in
    vendor are only included if they are used by the project.`,
-			Action: func(c *cli.Context) {
+			Action: func(c *cli.Context) error {
 				action.List(".", true, c.String("output"))
+				return nil
 			},
 			Flags: []cli.Flag{
 				cli.StringFlag{
@@ -553,27 +559,30 @@
 
        glide info -f "%n - %d - %h - %l"
           prints 'foo - Some example description - https://example.com - MIT'`,
-			Action: func(c *cli.Context) {
+			Action: func(c *cli.Context) error {
 				if c.IsSet("format") {
 					action.Info(c.String("format"))
 				} else {
 					cli.ShowCommandHelp(c, c.Command.Name)
 				}
+				return nil
 			},
 		},
 		{
 			Name:      "cache-clear",
 			ShortName: "cc",
 			Usage:     "Clears the Glide cache.",
-			Action: func(c *cli.Context) {
+			Action: func(c *cli.Context) error {
 				action.CacheClear()
+				return nil
 			},
 		},
 		{
 			Name:  "about",
 			Usage: "Learn about Glide",
-			Action: func(c *cli.Context) {
+			Action: func(c *cli.Context) error {
 				action.About()
+				return nil
 			},
 		},
 	}
diff --git a/glide.lock b/glide.lock
index fff4efe..7979eed 100644
--- a/glide.lock
+++ b/glide.lock
@@ -1,12 +1,12 @@
-hash: e12d18f87508f2f53e2981b52a02ed23d135f59ab90f3afca813727c0685eec0
-updated: 2016-09-27T23:50:39.744887915-04:00
+hash: eff229a4411103cdd466f1af8e2540a13197c537afe1ebc4fff4493eafb6e5ea
+updated: 2016-10-02T02:12:53.210831187-04:00
 imports:
 - name: github.com/armon/go-radix
   branch: master
   revision: 4239b77079c7b5d1243b7b4736304ce8ddb6f0f2
 - name: github.com/codegangsta/cli
-  version: v1.14.0
-  revision: 71f57d300dd6a780ac1856c005c4b518cfd498ec
+  version: v1.18.1
+  revision: a14d7d367bc02b1f57d88de97926727f2d936387
 - name: github.com/Masterminds/semver
   branch: 2.x
   revision: b3ef6b1808e9889dfb8767ce7068db923a3d07de
diff --git a/vendor/github.com/codegangsta/cli/CHANGELOG.md b/vendor/github.com/codegangsta/cli/CHANGELOG.md
index d1904fe..be5b389 100644
--- a/vendor/github.com/codegangsta/cli/CHANGELOG.md
+++ b/vendor/github.com/codegangsta/cli/CHANGELOG.md
@@ -4,6 +4,10 @@
 
 ## [Unreleased]
 
+## [1.18.1] - 2016-08-28
+### Fixed
+- Removed deprecation warnings to STDERR to avoid them leaking to the end-user (backported)
+
 ## [1.18.0] - 2016-06-27
 ### Added
 - `./runtests` test runner with coverage tracking by default
@@ -22,6 +26,10 @@
 - No longer swallows `panic`s that occur within the `Action`s themselves when
   detecting the signature of the `Action` field
 
+## [1.17.1] - 2016-08-28
+### Fixed
+- Removed deprecation warnings to STDERR to avoid them leaking to the end-user
+
 ## [1.17.0] - 2016-05-09
 ### Added
 - Pluggable flag-level help text rendering via `cli.DefaultFlagStringFunc`
@@ -43,6 +51,10 @@
 - cleanups based on [Go Report Card
   feedback](https://goreportcard.com/report/github.com/urfave/cli)
 
+## [1.16.1] - 2016-08-28
+### Fixed
+- Removed deprecation warnings to STDERR to avoid them leaking to the end-user
+
 ## [1.16.0] - 2016-05-02
 ### Added
 - `Hidden` field on all flag struct types to omit from generated help text
diff --git a/vendor/github.com/codegangsta/cli/app.go b/vendor/github.com/codegangsta/cli/app.go
index a046c01..2a51952 100644
--- a/vendor/github.com/codegangsta/cli/app.go
+++ b/vendor/github.com/codegangsta/cli/app.go
@@ -63,9 +63,9 @@
 	// It is run even if Action() panics
 	After AfterFunc
 	// The action to execute when no subcommands are specified
+	// Expects a `cli.ActionFunc` but will accept the *deprecated* signature of `func(*cli.Context) {}`
+	// *Note*: support for the deprecated `Action` signature will be removed in a future version
 	Action interface{}
-	// TODO: replace `Action: interface{}` with `Action: ActionFunc` once some kind
-	// of deprecation period has passed, maybe?
 
 	// Execute this function if the proper command cannot be found
 	CommandNotFound CommandNotFoundFunc
@@ -243,11 +243,12 @@
 	return err
 }
 
-// DEPRECATED: Another entry point to the cli app, takes care of passing arguments and error handling
+// RunAndExitOnError calls .Run() and exits non-zero if an error was returned
+//
+// Deprecated: instead you should return an error that fulfills cli.ExitCoder
+// to cli.App.Run. This will cause the application to exit with the given eror
+// code in the cli.ExitCoder
 func (a *App) RunAndExitOnError() {
-	fmt.Fprintf(a.errWriter(),
-		"DEPRECATED cli.App.RunAndExitOnError.  %s  See %s\n",
-		contactSysadmin, runAndExitOnErrorDeprecationURL)
 	if err := a.Run(os.Args); err != nil {
 		fmt.Fprintln(a.errWriter(), err)
 		OsExiter(1)
@@ -481,9 +482,6 @@
 	vals := reflect.ValueOf(action).Call([]reflect.Value{reflect.ValueOf(context)})
 
 	if len(vals) == 0 {
-		fmt.Fprintf(ErrWriter,
-			"DEPRECATED Action signature.  Must be `cli.ActionFunc`.  %s  See %s\n",
-			contactSysadmin, appActionDeprecationURL)
 		return nil
 	}