diff --git a/vendor/github.com/hashicorp/hcl/hcl/parser/parser.go b/vendor/github.com/hashicorp/hcl/hcl/parser/parser.go
index 8dd73e0c3f..6e54bed974 100644
--- a/vendor/github.com/hashicorp/hcl/hcl/parser/parser.go
+++ b/vendor/github.com/hashicorp/hcl/hcl/parser/parser.go
@@ -389,9 +389,15 @@ func (p *Parser) listType() (*ast.ListType, error) {
 			l.Add(node)
 			needComma = true
 		case token.LBRACK:
-			// TODO(arslan) should we support nested lists? Even though it's
-			// written in README of HCL, it's not a part of the grammar
-			// (not defined in parse.y)
+			node, err := p.listType()
+			if err != nil {
+				return nil, &PosError{
+					Pos: tok.Pos,
+					Err: fmt.Errorf(
+						"error while trying to parse list within list: %s", err),
+				}
+			}
+			l.Add(node)
 		case token.RBRACK:
 			// finished
 			l.Rbrack = p.tok.Pos
diff --git a/vendor/github.com/hashicorp/hcl/hcl/printer/nodes.go b/vendor/github.com/hashicorp/hcl/hcl/printer/nodes.go
index a73315979f..35a46fc72e 100644
--- a/vendor/github.com/hashicorp/hcl/hcl/printer/nodes.go
+++ b/vendor/github.com/hashicorp/hcl/hcl/printer/nodes.go
@@ -134,6 +134,7 @@ func (p *printer) output(n interface{}) []byte {
 				// Go through all the comments in the group. The group
 				// should be printed together, not separated by double newlines.
 				printed := false
+				newlinePrinted := false
 				for _, comment := range c.List {
 					// We only care about comments after the previous item
 					// we've printed so that comments are printed in the
@@ -144,8 +145,9 @@ func (p *printer) output(n interface{}) []byte {
 						// we don't do this if prev is invalid which means the
 						// beginning of the file since the first comment should
 						// be at the first line.
-						if p.prev.IsValid() && index == len(t.Items) {
+						if !newlinePrinted && p.prev.IsValid() && index == len(t.Items) {
 							buf.Write([]byte{newline, newline})
+							newlinePrinted = true
 						}
 
 						// Write the actual comment.
diff --git a/vendor/vendor.json b/vendor/vendor.json
index 02f037f145..5c024a4cd4 100644
--- a/vendor/vendor.json
+++ b/vendor/vendor.json
@@ -1688,68 +1688,68 @@
 		{
 			"checksumSHA1": "Ok3Csn6Voou7pQT6Dv2mkwpqFtw=",
 			"path": "github.com/hashicorp/hcl",
-			"revision": "db4f0768927a665a06c32855186e1bc762bcc8f5",
-			"revisionTime": "2017-01-25T01:06:35Z"
+			"revision": "372e8ddaa16fd67e371e9323807d056b799360af",
+			"revisionTime": "2017-02-02T00:05:34Z"
 		},
 		{
 			"checksumSHA1": "XQmjDva9JCGGkIecOgwtBEMCJhU=",
 			"path": "github.com/hashicorp/hcl/hcl/ast",
-			"revision": "db4f0768927a665a06c32855186e1bc762bcc8f5",
-			"revisionTime": "2017-01-25T01:06:35Z"
+			"revision": "372e8ddaa16fd67e371e9323807d056b799360af",
+			"revisionTime": "2017-02-02T00:05:34Z"
 		},
 		{
 			"checksumSHA1": "DaQmLi48oUAwctWcX6A6DNN61UY=",
 			"path": "github.com/hashicorp/hcl/hcl/fmtcmd",
-			"revision": "db4f0768927a665a06c32855186e1bc762bcc8f5",
-			"revisionTime": "2017-01-25T01:06:35Z"
+			"revision": "372e8ddaa16fd67e371e9323807d056b799360af",
+			"revisionTime": "2017-02-02T00:05:34Z"
 		},
 		{
-			"checksumSHA1": "MPz4qnNmoYHHUXDhHj0TpJk4LHk=",
+			"checksumSHA1": "MGYzZActhzSs9AnCx3wrEYVbKFg=",
 			"path": "github.com/hashicorp/hcl/hcl/parser",
-			"revision": "db4f0768927a665a06c32855186e1bc762bcc8f5",
-			"revisionTime": "2017-01-25T01:06:35Z"
+			"revision": "372e8ddaa16fd67e371e9323807d056b799360af",
+			"revisionTime": "2017-02-02T00:05:34Z"
 		},
 		{
-			"checksumSHA1": "J5zAZ+tMBDPRJ8A07742Pl/c++w=",
+			"checksumSHA1": "/cGXzX8tBvN1mu0mNvGzURdiqHU=",
 			"path": "github.com/hashicorp/hcl/hcl/printer",
-			"revision": "db4f0768927a665a06c32855186e1bc762bcc8f5",
-			"revisionTime": "2017-01-25T01:06:35Z"
+			"revision": "372e8ddaa16fd67e371e9323807d056b799360af",
+			"revisionTime": "2017-02-02T00:05:34Z"
 		},
 		{
 			"checksumSHA1": "z6wdP4mRw4GVjShkNHDaOWkbxS0=",
 			"path": "github.com/hashicorp/hcl/hcl/scanner",
-			"revision": "db4f0768927a665a06c32855186e1bc762bcc8f5",
-			"revisionTime": "2017-01-25T01:06:35Z"
+			"revision": "372e8ddaa16fd67e371e9323807d056b799360af",
+			"revisionTime": "2017-02-02T00:05:34Z"
 		},
 		{
 			"checksumSHA1": "oS3SCN9Wd6D8/LG0Yx1fu84a7gI=",
 			"path": "github.com/hashicorp/hcl/hcl/strconv",
-			"revision": "db4f0768927a665a06c32855186e1bc762bcc8f5",
-			"revisionTime": "2017-01-25T01:06:35Z"
+			"revision": "372e8ddaa16fd67e371e9323807d056b799360af",
+			"revisionTime": "2017-02-02T00:05:34Z"
 		},
 		{
 			"checksumSHA1": "c6yprzj06ASwCo18TtbbNNBHljA=",
 			"path": "github.com/hashicorp/hcl/hcl/token",
-			"revision": "db4f0768927a665a06c32855186e1bc762bcc8f5",
-			"revisionTime": "2017-01-25T01:06:35Z"
+			"revision": "372e8ddaa16fd67e371e9323807d056b799360af",
+			"revisionTime": "2017-02-02T00:05:34Z"
 		},
 		{
 			"checksumSHA1": "138aCV5n8n7tkGYMsMVQQnnLq+0=",
 			"path": "github.com/hashicorp/hcl/json/parser",
-			"revision": "db4f0768927a665a06c32855186e1bc762bcc8f5",
-			"revisionTime": "2017-01-25T01:06:35Z"
+			"revision": "372e8ddaa16fd67e371e9323807d056b799360af",
+			"revisionTime": "2017-02-02T00:05:34Z"
 		},
 		{
 			"checksumSHA1": "YdvFsNOMSWMLnY6fcliWQa0O5Fw=",
 			"path": "github.com/hashicorp/hcl/json/scanner",
-			"revision": "db4f0768927a665a06c32855186e1bc762bcc8f5",
-			"revisionTime": "2017-01-25T01:06:35Z"
+			"revision": "372e8ddaa16fd67e371e9323807d056b799360af",
+			"revisionTime": "2017-02-02T00:05:34Z"
 		},
 		{
 			"checksumSHA1": "fNlXQCQEnb+B3k5UDL/r15xtSJY=",
 			"path": "github.com/hashicorp/hcl/json/token",
-			"revision": "db4f0768927a665a06c32855186e1bc762bcc8f5",
-			"revisionTime": "2017-01-25T01:06:35Z"
+			"revision": "372e8ddaa16fd67e371e9323807d056b799360af",
+			"revisionTime": "2017-02-02T00:05:34Z"
 		},
 		{
 			"checksumSHA1": "2Nrl/YKrmowkRgCDLhA6UTFgYEY=",