diff --git a/vendor/github.com/hashicorp/hcl2/hcldec/variables.go b/vendor/github.com/hashicorp/hcl2/hcldec/variables.go
index 427b0d0e6..7662516ca 100644
--- a/vendor/github.com/hashicorp/hcl2/hcldec/variables.go
+++ b/vendor/github.com/hashicorp/hcl2/hcldec/variables.go
@@ -15,20 +15,22 @@ import (
 // be incomplete, but that's assumed to be okay because the eventual call
 // to Decode will produce error diagnostics anyway.
 func Variables(body hcl.Body, spec Spec) []hcl.Traversal {
-	schema := ImpliedSchema(spec)
-
-	content, _, _ := body.PartialContent(schema)
-
 	var vars []hcl.Traversal
+	schema := ImpliedSchema(spec)
+	content, _, _ := body.PartialContent(schema)
 
 	if vs, ok := spec.(specNeedingVariables); ok {
 		vars = append(vars, vs.variablesNeeded(content)...)
 	}
-	spec.visitSameBodyChildren(func(s Spec) {
+
+	var visitFn visitFunc
+	visitFn = func(s Spec) {
 		if vs, ok := s.(specNeedingVariables); ok {
 			vars = append(vars, vs.variablesNeeded(content)...)
 		}
-	})
+		s.visitSameBodyChildren(visitFn)
+	}
+	spec.visitSameBodyChildren(visitFn)
 
 	return vars
 }
diff --git a/vendor/vendor.json b/vendor/vendor.json
index 8034b37bc..e5c69df2b 100644
--- a/vendor/vendor.json
+++ b/vendor/vendor.json
@@ -1891,68 +1891,68 @@
 		{
 			"checksumSHA1": "dJPromzLdd492RQjE/09klKRXGs=",
 			"path": "github.com/hashicorp/hcl2/ext/dynblock",
-			"revision": "81d22773002de532651a19acb91b4e1fe2b44cb2",
-			"revisionTime": "2018-05-23T23:56:29Z"
+			"revision": "36446359d27574bf110611001414da561731b62d",
+			"revisionTime": "2018-05-24T19:11:53Z"
 		},
 		{
 			"checksumSHA1": "IAfC0Xri1iCRgbbiDBgs6ue8/Ic=",
 			"path": "github.com/hashicorp/hcl2/ext/typeexpr",
-			"revision": "81d22773002de532651a19acb91b4e1fe2b44cb2",
-			"revisionTime": "2018-05-23T23:56:29Z"
+			"revision": "36446359d27574bf110611001414da561731b62d",
+			"revisionTime": "2018-05-24T19:11:53Z"
 		},
 		{
 			"checksumSHA1": "BRJaQcKriVKEirVC7YxBxPufQF0=",
 			"path": "github.com/hashicorp/hcl2/gohcl",
-			"revision": "81d22773002de532651a19acb91b4e1fe2b44cb2",
-			"revisionTime": "2018-05-23T23:56:29Z"
+			"revision": "36446359d27574bf110611001414da561731b62d",
+			"revisionTime": "2018-05-24T19:11:53Z"
 		},
 		{
 			"checksumSHA1": "v1JCFNvhLqF3ErYcxkJJPboKO8c=",
 			"path": "github.com/hashicorp/hcl2/hcl",
-			"revision": "81d22773002de532651a19acb91b4e1fe2b44cb2",
-			"revisionTime": "2018-05-23T23:56:29Z"
+			"revision": "36446359d27574bf110611001414da561731b62d",
+			"revisionTime": "2018-05-24T19:11:53Z"
 		},
 		{
 			"checksumSHA1": "6H/LBmIYL/dNjKvlbB2hAsxm2rw=",
 			"path": "github.com/hashicorp/hcl2/hcl/hclsyntax",
-			"revision": "81d22773002de532651a19acb91b4e1fe2b44cb2",
-			"revisionTime": "2018-05-23T23:56:29Z"
+			"revision": "36446359d27574bf110611001414da561731b62d",
+			"revisionTime": "2018-05-24T19:11:53Z"
 		},
 		{
 			"checksumSHA1": "G40fCmu1bSWXv4Hw5JXwEUTVThk=",
 			"path": "github.com/hashicorp/hcl2/hcl/json",
-			"revision": "81d22773002de532651a19acb91b4e1fe2b44cb2",
-			"revisionTime": "2018-05-23T23:56:29Z"
+			"revision": "36446359d27574bf110611001414da561731b62d",
+			"revisionTime": "2018-05-24T19:11:53Z"
 		},
 		{
-			"checksumSHA1": "c3Lb2st15sopmoLrjLQp+XyaZjE=",
+			"checksumSHA1": "iIVMnRuvfOy/tJ1zE9rVcjD/01A=",
 			"path": "github.com/hashicorp/hcl2/hcldec",
-			"revision": "81d22773002de532651a19acb91b4e1fe2b44cb2",
-			"revisionTime": "2018-05-23T23:56:29Z"
+			"revision": "36446359d27574bf110611001414da561731b62d",
+			"revisionTime": "2018-05-24T19:11:53Z"
 		},
 		{
 			"checksumSHA1": "sySYF9Ew71VS/LfrG+s/0jK+1VQ=",
 			"path": "github.com/hashicorp/hcl2/hcled",
-			"revision": "81d22773002de532651a19acb91b4e1fe2b44cb2",
-			"revisionTime": "2018-05-23T23:56:29Z"
+			"revision": "36446359d27574bf110611001414da561731b62d",
+			"revisionTime": "2018-05-24T19:11:53Z"
 		},
 		{
 			"checksumSHA1": "IzmftuG99BqNhbFGhxZaGwtiMtM=",
 			"path": "github.com/hashicorp/hcl2/hclparse",
-			"revision": "81d22773002de532651a19acb91b4e1fe2b44cb2",
-			"revisionTime": "2018-05-23T23:56:29Z"
+			"revision": "36446359d27574bf110611001414da561731b62d",
+			"revisionTime": "2018-05-24T19:11:53Z"
 		},
 		{
 			"checksumSHA1": "v5qx2XghQ+EtvFLa4a0Efjiwt9I=",
 			"path": "github.com/hashicorp/hcl2/hcltest",
-			"revision": "81d22773002de532651a19acb91b4e1fe2b44cb2",
-			"revisionTime": "2018-05-23T23:56:29Z"
+			"revision": "36446359d27574bf110611001414da561731b62d",
+			"revisionTime": "2018-05-24T19:11:53Z"
 		},
 		{
 			"checksumSHA1": "C82otWNczU2S3azjxsjdGH9zW+Y=",
 			"path": "github.com/hashicorp/hcl2/hclwrite",
-			"revision": "81d22773002de532651a19acb91b4e1fe2b44cb2",
-			"revisionTime": "2018-05-23T23:56:29Z"
+			"revision": "36446359d27574bf110611001414da561731b62d",
+			"revisionTime": "2018-05-24T19:11:53Z"
 		},
 		{
 			"checksumSHA1": "M09yxoBoCEtG7EcHR8aEWLzMMJc=",