diff --git a/glide.lock b/glide.lock
index c7a384e..c869e2f 100644
--- a/glide.lock
+++ b/glide.lock
@@ -1,10 +1,10 @@
-hash: 89ab42baaeb2d708ad98cbd606ebeecfcb7874d64b30bc130c6e337f2ea3a4ea
-updated: 2016-06-30T09:50:18.895962151-04:00
+hash: 0653c17bcbf6f1df79990f3d2211dbcbc920ca528c513b00f5cab0a508c984ab
+updated: 2016-06-30T10:51:49.633776379-04:00
 imports:
 - name: github.com/codegangsta/cli
   version: 71f57d300dd6a780ac1856c005c4b518cfd498ec
 - name: github.com/Masterminds/semver
-  version: 808ed7761c233af2de3f9729a041d68c62527f3a
+  version: 8d0431362b544d1a3536cca26684828866a7de09
 - name: github.com/Masterminds/vcs
   version: fbe9fb6ad5b5f35b3e82a7c21123cfc526cbf895
 - name: gopkg.in/yaml.v2
diff --git a/glide.yaml b/glide.yaml
index 1a1f789..dfc97e9 100644
--- a/glide.yaml
+++ b/glide.yaml
@@ -15,4 +15,4 @@
 - package: github.com/codegangsta/cli
   version: ~1.14.0
 - package: github.com/Masterminds/semver
-  version: ^1.0.0
+  version: ^1.1.1
diff --git a/vendor/github.com/Masterminds/semver/CHANGELOG.md b/vendor/github.com/Masterminds/semver/CHANGELOG.md
index 2382b75..c3808ea 100644
--- a/vendor/github.com/Masterminds/semver/CHANGELOG.md
+++ b/vendor/github.com/Masterminds/semver/CHANGELOG.md
@@ -1,4 +1,13 @@
-# Release 1.1.0 (2015-03-11)
+# Release 1.1.1 (2016-06-30)
+
+## Changed
+- Issue #9: Speed up version comparison performance (thanks @sdboyer)
+- Issue #8: Added benchmarks (thanks @sdboyer)
+- Updated Go Report Card URL to new location
+- Updated Readme to add code snippet formatting (thanks @mh-cbon)
+- Updating tagging to v[SemVer] structure for compatibility with other tools.
+
+# Release 1.1.0 (2016-03-11)
 
 - Issue #2: Implemented validation to provide reasons a versions failed a
   constraint.
diff --git a/vendor/github.com/Masterminds/semver/README.md b/vendor/github.com/Masterminds/semver/README.md
index aa133ea..1edec7a 100644
--- a/vendor/github.com/Masterminds/semver/README.md
+++ b/vendor/github.com/Masterminds/semver/README.md
@@ -7,13 +7,15 @@
 * Check if a semantic version fits within a set of constraints
 * Optionally work with a `v` prefix
 
-[![Build Status](https://travis-ci.org/Masterminds/semver.svg)](https://travis-ci.org/Masterminds/semver) [![Build status](https://ci.appveyor.com/api/projects/status/jfk66lib7hb985k8/branch/master?svg=true&passingText=windows%20build%20passing&failingText=windows%20build%20failing)](https://ci.appveyor.com/project/mattfarina/semver/branch/master) [![GoDoc](https://godoc.org/github.com/Masterminds/semver?status.png)](https://godoc.org/github.com/Masterminds/semver) [![Go Report Card](http://goreportcard.com/badge/Masterminds/semver)](http://goreportcard.com/report/Masterminds/semver)
+[![Build Status](https://travis-ci.org/Masterminds/semver.svg)](https://travis-ci.org/Masterminds/semver) [![Build status](https://ci.appveyor.com/api/projects/status/jfk66lib7hb985k8/branch/master?svg=true&passingText=windows%20build%20passing&failingText=windows%20build%20failing)](https://ci.appveyor.com/project/mattfarina/semver/branch/master) [![GoDoc](https://godoc.org/github.com/Masterminds/semver?status.png)](https://godoc.org/github.com/Masterminds/semver) [![Go Report Card](https://goreportcard.com/badge/github.com/Masterminds/semver)](https://goreportcard.com/report/github.com/Masterminds/semver)
 
 ## Parsing Semantic Versions
 
 To parse a semantic version use the `NewVersion` function. For example,
 
+```go
     v, err := semver.NewVersion("1.2.3-beta.1+build345")
+```
 
 If there is an error the version wasn't parseable. The version object has methods
 to get the parts of the version, compare it to other versions, convert the
@@ -25,6 +27,7 @@
 A set of versions can be sorted using the [`sort`](https://golang.org/pkg/sort/)
 package from the standard library. For example,
 
+```go
     raw := []string{"1.2.3", "1.0", "1.3", "2", "0.4.2",}
     vs := make([]*semver.Version, len(raw))
 	for i, r := range raw {
@@ -37,12 +40,14 @@
 	}
 
 	sort.Sort(semver.Collection(vs))
+```
 
 ## Checking Version Constraints
 
 Checking a version against version constraints is one of the most featureful
 parts of the package.
 
+```go
     c, err := semver.NewConstraint(">= 1.2.3")
     if err != nil {
         // Handle constraint not being parseable.
@@ -54,6 +59,7 @@
     }
     // Check if the version meets the constraints. The a variable will be true.
     a := c.Check(v)
+```
 
 ## Basic Comparisons
 
@@ -119,6 +125,7 @@
 against a constraint. When validation fails a slice of errors containing why a
 version didn't meet the constraint is returned. For example,
 
+```go
     c, err := semver.NewConstraint("<= 1.2.3, >= 1.4")
     if err != nil {
         // Handle constraint not being parseable.
@@ -139,6 +146,7 @@
         // "1.3 is greater than 1.2.3"
         // "1.3 is less than 1.4"
     }
+```
 
 # Contribute
 
diff --git a/vendor/github.com/Masterminds/semver/benchmark_test.go b/vendor/github.com/Masterminds/semver/benchmark_test.go
new file mode 100644
index 0000000..58a5c28
--- /dev/null
+++ b/vendor/github.com/Masterminds/semver/benchmark_test.go
@@ -0,0 +1,157 @@
+package semver_test
+
+import (
+	"testing"
+
+	"github.com/Masterminds/semver"
+)
+
+/* Constraint creation benchmarks */
+
+func benchNewConstraint(c string, b *testing.B) {
+	for i := 0; i < b.N; i++ {
+		semver.NewConstraint(c)
+	}
+}
+
+func BenchmarkNewConstraintUnary(b *testing.B) {
+	benchNewConstraint("=2.0", b)
+}
+
+func BenchmarkNewConstraintTilde(b *testing.B) {
+	benchNewConstraint("~2.0.0", b)
+}
+
+func BenchmarkNewConstraintCaret(b *testing.B) {
+	benchNewConstraint("^2.0.0", b)
+}
+
+func BenchmarkNewConstraintWildcard(b *testing.B) {
+	benchNewConstraint("1.x", b)
+}
+
+func BenchmarkNewConstraintRange(b *testing.B) {
+	benchNewConstraint(">=2.1.x, <3.1.0", b)
+}
+
+func BenchmarkNewConstraintUnion(b *testing.B) {
+	benchNewConstraint("~2.0.0 || =3.1.0", b)
+}
+
+/* Check benchmarks */
+
+func benchCheckVersion(c, v string, b *testing.B) {
+	version, _ := semver.NewVersion(v)
+	constraint, _ := semver.NewConstraint(c)
+
+	for i := 0; i < b.N; i++ {
+		constraint.Check(version)
+	}
+}
+
+func BenchmarkCheckVersionUnary(b *testing.B) {
+	benchCheckVersion("=2.0", "2.0.0", b)
+}
+
+func BenchmarkCheckVersionTilde(b *testing.B) {
+	benchCheckVersion("~2.0.0", "2.0.5", b)
+}
+
+func BenchmarkCheckVersionCaret(b *testing.B) {
+	benchCheckVersion("^2.0.0", "2.1.0", b)
+}
+
+func BenchmarkCheckVersionWildcard(b *testing.B) {
+	benchCheckVersion("1.x", "1.4.0", b)
+}
+
+func BenchmarkCheckVersionRange(b *testing.B) {
+	benchCheckVersion(">=2.1.x, <3.1.0", "2.4.5", b)
+}
+
+func BenchmarkCheckVersionUnion(b *testing.B) {
+	benchCheckVersion("~2.0.0 || =3.1.0", "3.1.0", b)
+}
+
+func benchValidateVersion(c, v string, b *testing.B) {
+	version, _ := semver.NewVersion(v)
+	constraint, _ := semver.NewConstraint(c)
+
+	for i := 0; i < b.N; i++ {
+		constraint.Validate(version)
+	}
+}
+
+/* Validate benchmarks, including fails */
+
+func BenchmarkValidateVersionUnary(b *testing.B) {
+	benchValidateVersion("=2.0", "2.0.0", b)
+}
+
+func BenchmarkValidateVersionUnaryFail(b *testing.B) {
+	benchValidateVersion("=2.0", "2.0.1", b)
+}
+
+func BenchmarkValidateVersionTilde(b *testing.B) {
+	benchValidateVersion("~2.0.0", "2.0.5", b)
+}
+
+func BenchmarkValidateVersionTildeFail(b *testing.B) {
+	benchValidateVersion("~2.0.0", "1.0.5", b)
+}
+
+func BenchmarkValidateVersionCaret(b *testing.B) {
+	benchValidateVersion("^2.0.0", "2.1.0", b)
+}
+
+func BenchmarkValidateVersionCaretFail(b *testing.B) {
+	benchValidateVersion("^2.0.0", "4.1.0", b)
+}
+
+func BenchmarkValidateVersionWildcard(b *testing.B) {
+	benchValidateVersion("1.x", "1.4.0", b)
+}
+
+func BenchmarkValidateVersionWildcardFail(b *testing.B) {
+	benchValidateVersion("1.x", "2.4.0", b)
+}
+
+func BenchmarkValidateVersionRange(b *testing.B) {
+	benchValidateVersion(">=2.1.x, <3.1.0", "2.4.5", b)
+}
+
+func BenchmarkValidateVersionRangeFail(b *testing.B) {
+	benchValidateVersion(">=2.1.x, <3.1.0", "1.4.5", b)
+}
+
+func BenchmarkValidateVersionUnion(b *testing.B) {
+	benchValidateVersion("~2.0.0 || =3.1.0", "3.1.0", b)
+}
+
+func BenchmarkValidateVersionUnionFail(b *testing.B) {
+	benchValidateVersion("~2.0.0 || =3.1.0", "3.1.1", b)
+}
+
+/* Version creation benchmarks */
+
+func benchNewVersion(v string, b *testing.B) {
+	for i := 0; i < b.N; i++ {
+		semver.NewVersion(v)
+	}
+}
+
+func BenchmarkNewVersionSimple(b *testing.B) {
+	benchNewVersion("1.0.0", b)
+}
+
+func BenchmarkNewVersionPre(b *testing.B) {
+	benchNewVersion("1.0.0-alpha", b)
+}
+
+func BenchmarkNewVersionMeta(b *testing.B) {
+	benchNewVersion("1.0.0+metadata", b)
+}
+
+func BenchmarkNewVersionMetaDash(b *testing.B) {
+	benchNewVersion("1.0.0+metadata-dash", b)
+}
diff --git a/vendor/github.com/Masterminds/semver/constraints.go b/vendor/github.com/Masterminds/semver/constraints.go
index 9a5e9da..b63f5f6 100644
--- a/vendor/github.com/Masterminds/semver/constraints.go
+++ b/vendor/github.com/Masterminds/semver/constraints.go
@@ -312,8 +312,6 @@
 	return true
 }
 
-type rwfunc func(i string) string
-
 var constraintRangeRegex *regexp.Regexp
 
 const cvRegex string = `v?([0-9|x|X|\*]+)(\.[0-9|x|X|\*]+)?(\.[0-9|x|X|\*]+)?` +
@@ -321,8 +319,12 @@
 	`(\+([0-9A-Za-z\-]+(\.[0-9A-Za-z\-]+)*))?`
 
 func isX(x string) bool {
-	l := strings.ToLower(x)
-	return l == "x" || l == "*"
+	switch x {
+	case "x", "*", "X":
+		return true
+	default:
+		return false
+	}
 }
 
 func rewriteRange(i string) string {
diff --git a/vendor/github.com/Masterminds/semver/version.go b/vendor/github.com/Masterminds/semver/version.go
index 75dbbc0..dbb93f8 100644
--- a/vendor/github.com/Masterminds/semver/version.go
+++ b/vendor/github.com/Masterminds/semver/version.go
@@ -152,12 +152,6 @@
 // Versions are compared by X.Y.Z. Build metadata is ignored. Prerelease is
 // lower than the version without a prerelease.
 func (v *Version) Compare(o *Version) int {
-
-	// Fastpath if both versions are the same.
-	if v.String() == o.String() {
-		return 0
-	}
-
 	// Compare the major, minor, and patch version for differences. If a
 	// difference is found return the comparison.
 	if d := compareSegment(v.Major(), o.Major()); d != 0 {