diff --git a/go.mod b/go.mod
index cc61aac70e1..f4dd3ba52ef 100644
--- a/go.mod
+++ b/go.mod
@@ -30,7 +30,7 @@ require (
 	github.com/googleapis/gnostic v0.3.1 // indirect
 	github.com/gophercloud/gophercloud v0.6.0 // indirect
 	github.com/hailocab/go-hostpool v0.0.0-20160125115350-e80d13ce29ed // indirect
-	github.com/hashicorp/hcl/v2 v2.4.0
+	github.com/hashicorp/hcl/v2 v2.6.0
 	github.com/jinzhu/gorm v1.9.2 // indirect
 	github.com/jinzhu/inflection v0.0.0-20180308033659-04140366298a // indirect
 	github.com/jinzhu/now v1.0.0 // indirect
diff --git a/go.sum b/go.sum
index deadba33778..930f0322a69 100644
--- a/go.sum
+++ b/go.sum
@@ -273,8 +273,8 @@ github.com/hashicorp/golang-lru v0.5.1 h1:0hERBMJE1eitiLkihrMvRVBYAkpHzc/J3QdDN+
 github.com/hashicorp/golang-lru v0.5.1/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
 github.com/hashicorp/hcl v1.0.0 h1:0Anlzjpi4vEasTeNFn2mLJgTSwt0+6sfsiTG8qcWGx4=
 github.com/hashicorp/hcl v1.0.0/go.mod h1:E5yfLk+7swimpb2L/Alb/PJmXilQ/rhwaUYs4T20WEQ=
-github.com/hashicorp/hcl/v2 v2.4.0 h1:xwVa1aj4nCSoAjUnFPBAIfqlzPgSZEVMdkJv/mgj4jY=
-github.com/hashicorp/hcl/v2 v2.4.0/go.mod h1:bQTN5mpo+jewjJgh8jr0JUguIi7qPHUF6yIfAEN3jqY=
+github.com/hashicorp/hcl/v2 v2.6.0 h1:3krZOfGY6SziUXa6H9PJU6TyohHn7I+ARYnhbeNBz+o=
+github.com/hashicorp/hcl/v2 v2.6.0/go.mod h1:bQTN5mpo+jewjJgh8jr0JUguIi7qPHUF6yIfAEN3jqY=
 github.com/hashicorp/uuid v0.0.0-20160311170451-ebb0a03e909c/go.mod h1:fHzc09UnyJyqyW+bFuq864eh+wC7dj65aXmXLRe5to0=
 github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU=
 github.com/imdario/mergo v0.3.5/go.mod h1:2EnlNZ0deacrJVfApfmtdGgDfMuh/nq6Ok1EcJh5FfA=
diff --git a/vendor/github.com/hashicorp/hcl/v2/CHANGELOG.md b/vendor/github.com/hashicorp/hcl/v2/CHANGELOG.md
index f7e094c3b0a..c559ec206fa 100644
--- a/vendor/github.com/hashicorp/hcl/v2/CHANGELOG.md
+++ b/vendor/github.com/hashicorp/hcl/v2/CHANGELOG.md
@@ -1,5 +1,29 @@
 # HCL Changelog
 
+## v2.6.0 (June 4, 2020)
+
+### Enhancements
+
+* hcldec: Add a new `Spec`, `ValidateSpec`, which allows custom validation of values at decode-time. ([#387](https://github.com/hashicorp/hcl/pull/387))
+
+### Bugs Fixed
+
+* hclsyntax: Fix panic with combination of sequences and null arguments ([#386](https://github.com/hashicorp/hcl/pull/386))
+* hclsyntax: Fix handling of unknown values and sequences ([#386](https://github.com/hashicorp/hcl/pull/386))
+
+## v2.5.1 (May 14, 2020)
+
+### Bugs Fixed
+
+* hclwrite: handle legacy dot access of numeric indexes. ([#369](https://github.com/hashicorp/hcl/pull/369))
+* hclwrite: Fix panic for dotted full splat (`foo.*`) ([#374](https://github.com/hashicorp/hcl/pull/374))
+
+## v2.5.0 (May 6, 2020)
+
+### Enhancements
+
+* hclwrite: Generate multi-line objects and maps. ([#372](https://github.com/hashicorp/hcl/pull/372))
+
 ## v2.4.0 (Apr 13, 2020)
 
 ### Enhancements
diff --git a/vendor/github.com/hashicorp/hcl/v2/diagnostic.go b/vendor/github.com/hashicorp/hcl/v2/diagnostic.go
index c320961e11e..c80535b7a73 100644
--- a/vendor/github.com/hashicorp/hcl/v2/diagnostic.go
+++ b/vendor/github.com/hashicorp/hcl/v2/diagnostic.go
@@ -22,14 +22,14 @@ const (
 )
 
 // Diagnostic represents information to be presented to a user about an
-// error or anomoly in parsing or evaluating configuration.
+// error or anomaly in parsing or evaluating configuration.
 type Diagnostic struct {
 	Severity DiagnosticSeverity
 
 	// Summary and Detail contain the English-language description of the
 	// problem. Summary is a terse description of the general problem and
 	// detail is a more elaborate, often-multi-sentence description of
-	// the probem and what might be done to solve it.
+	// the problem and what might be done to solve it.
 	Summary string
 	Detail  string
 
diff --git a/vendor/github.com/hashicorp/hcl/v2/hclsyntax/expression.go b/vendor/github.com/hashicorp/hcl/v2/hclsyntax/expression.go
index 3fe84ddc383..76e5858918a 100644
--- a/vendor/github.com/hashicorp/hcl/v2/hclsyntax/expression.go
+++ b/vendor/github.com/hashicorp/hcl/v2/hclsyntax/expression.go
@@ -260,6 +260,20 @@ func (e *FunctionCallExpr) Value(ctx *hcl.EvalContext) (cty.Value, hcl.Diagnosti
 		}
 
 		switch {
+		case expandVal.Type().Equals(cty.DynamicPseudoType):
+			if expandVal.IsNull() {
+				diags = append(diags, &hcl.Diagnostic{
+					Severity:    hcl.DiagError,
+					Summary:     "Invalid expanding argument value",
+					Detail:      "The expanding argument (indicated by ...) must not be null.",
+					Subject:     expandExpr.Range().Ptr(),
+					Context:     e.Range().Ptr(),
+					Expression:  expandExpr,
+					EvalContext: ctx,
+				})
+				return cty.DynamicVal, diags
+			}
+			return cty.DynamicVal, diags
 		case expandVal.Type().IsTupleType() || expandVal.Type().IsListType() || expandVal.Type().IsSetType():
 			if expandVal.IsNull() {
 				diags = append(diags, &hcl.Diagnostic{
@@ -406,22 +420,39 @@ func (e *FunctionCallExpr) Value(ctx *hcl.EvalContext) (cty.Value, hcl.Diagnosti
 			} else {
 				param = varParam
 			}
-			argExpr := e.Args[i]
 
-			// TODO: we should also unpick a PathError here and show the
-			// path to the deep value where the error was detected.
-			diags = append(diags, &hcl.Diagnostic{
-				Severity: hcl.DiagError,
-				Summary:  "Invalid function argument",
-				Detail: fmt.Sprintf(
-					"Invalid value for %q parameter: %s.",
-					param.Name, err,
-				),
-				Subject:     argExpr.StartRange().Ptr(),
-				Context:     e.Range().Ptr(),
-				Expression:  argExpr,
-				EvalContext: ctx,
-			})
+			// this can happen if an argument is (incorrectly) null.
+			if i > len(e.Args)-1 {
+				diags = append(diags, &hcl.Diagnostic{
+					Severity: hcl.DiagError,
+					Summary:  "Invalid function argument",
+					Detail: fmt.Sprintf(
+						"Invalid value for %q parameter: %s.",
+						param.Name, err,
+					),
+					Subject:     args[len(params)].StartRange().Ptr(),
+					Context:     e.Range().Ptr(),
+					Expression:  e,
+					EvalContext: ctx,
+				})
+			} else {
+				argExpr := e.Args[i]
+
+				// TODO: we should also unpick a PathError here and show the
+				// path to the deep value where the error was detected.
+				diags = append(diags, &hcl.Diagnostic{
+					Severity: hcl.DiagError,
+					Summary:  "Invalid function argument",
+					Detail: fmt.Sprintf(
+						"Invalid value for %q parameter: %s.",
+						param.Name, err,
+					),
+					Subject:     argExpr.StartRange().Ptr(),
+					Context:     e.Range().Ptr(),
+					Expression:  argExpr,
+					EvalContext: ctx,
+				})
+			}
 
 		default:
 			diags = append(diags, &hcl.Diagnostic{
diff --git a/vendor/github.com/hashicorp/hcl/v2/hclsyntax/parser.go b/vendor/github.com/hashicorp/hcl/v2/hclsyntax/parser.go
index 83efd9adec3..858bb7c2c77 100644
--- a/vendor/github.com/hashicorp/hcl/v2/hclsyntax/parser.go
+++ b/vendor/github.com/hashicorp/hcl/v2/hclsyntax/parser.go
@@ -670,6 +670,7 @@ Traversal:
 				trav := make(hcl.Traversal, 0, 1)
 				var firstRange, lastRange hcl.Range
 				firstRange = p.NextRange()
+				lastRange = marker.Range
 				for p.Peek().Type == TokenDot {
 					dot := p.Read()
 
diff --git a/vendor/github.com/hashicorp/hcl/v2/hclwrite/generate.go b/vendor/github.com/hashicorp/hcl/v2/hclwrite/generate.go
index 4d439acd7a4..48e1312113a 100644
--- a/vendor/github.com/hashicorp/hcl/v2/hclwrite/generate.go
+++ b/vendor/github.com/hashicorp/hcl/v2/hclwrite/generate.go
@@ -119,15 +119,15 @@ func appendTokensForValue(val cty.Value, toks Tokens) Tokens {
 			Type:  hclsyntax.TokenOBrace,
 			Bytes: []byte{'{'},
 		})
+		if val.LengthInt() > 0 {
+			toks = append(toks, &Token{
+				Type:  hclsyntax.TokenNewline,
+				Bytes: []byte{'\n'},
+			})
+		}
 
 		i := 0
 		for it := val.ElementIterator(); it.Next(); {
-			if i > 0 {
-				toks = append(toks, &Token{
-					Type:  hclsyntax.TokenComma,
-					Bytes: []byte{','},
-				})
-			}
 			eKey, eVal := it.Element()
 			if hclsyntax.ValidIdentifier(eKey.AsString()) {
 				toks = append(toks, &Token{
@@ -142,6 +142,10 @@ func appendTokensForValue(val cty.Value, toks Tokens) Tokens {
 				Bytes: []byte{'='},
 			})
 			toks = appendTokensForValue(eVal, toks)
+			toks = append(toks, &Token{
+				Type:  hclsyntax.TokenNewline,
+				Bytes: []byte{'\n'},
+			})
 			i++
 		}
 
diff --git a/vendor/github.com/hashicorp/hcl/v2/hclwrite/parser.go b/vendor/github.com/hashicorp/hcl/v2/hclwrite/parser.go
index d6cf532ea3c..354d4eaef73 100644
--- a/vendor/github.com/hashicorp/hcl/v2/hclwrite/parser.go
+++ b/vendor/github.com/hashicorp/hcl/v2/hclwrite/parser.go
@@ -88,6 +88,16 @@ func (it inputTokens) PartitionType(ty hclsyntax.TokenType) (before, within, aft
 	panic(fmt.Sprintf("didn't find any token of type %s", ty))
 }
 
+func (it inputTokens) PartitionTypeOk(ty hclsyntax.TokenType) (before, within, after inputTokens, ok bool) {
+	for i, t := range it.writerTokens {
+		if t.Type == ty {
+			return it.Slice(0, i), it.Slice(i, i+1), it.Slice(i+1, len(it.nativeTokens)), true
+		}
+	}
+
+	return inputTokens{}, inputTokens{}, inputTokens{}, false
+}
+
 func (it inputTokens) PartitionTypeSingle(ty hclsyntax.TokenType) (before inputTokens, found *Token, after inputTokens) {
 	before, within, after := it.PartitionType(ty)
 	if within.Len() != 1 {
@@ -404,6 +414,19 @@ func parseTraversalStep(nativeStep hcl.Traverser, from inputTokens) (before inpu
 		children = step.inTree.children
 		before, from, after = from.Partition(nativeStep.SourceRange())
 
+		if inBefore, dot, from, ok := from.PartitionTypeOk(hclsyntax.TokenDot); ok {
+			children.AppendUnstructuredTokens(inBefore.Tokens())
+			children.AppendUnstructuredTokens(dot.Tokens())
+
+			valBefore, valToken, valAfter := from.PartitionTypeSingle(hclsyntax.TokenNumberLit)
+			children.AppendUnstructuredTokens(valBefore.Tokens())
+			key := newNumber(valToken)
+			step.key = children.Append(key)
+			children.AppendUnstructuredTokens(valAfter.Tokens())
+
+			return before, newNode(step), after
+		}
+
 		var inBefore, oBrack, keyTokens, cBrack inputTokens
 		inBefore, oBrack, from = from.PartitionType(hclsyntax.TokenOBrack)
 		children.AppendUnstructuredTokens(inBefore.Tokens())
@@ -498,8 +521,8 @@ func writerTokens(nativeTokens hclsyntax.Tokens) Tokens {
 // The tokens are assumed to be in source order and non-overlapping, which
 // will be true if the token sequence from the scanner is used directly.
 func partitionTokens(toks hclsyntax.Tokens, rng hcl.Range) (start, end int) {
-	// We us a linear search here because we assume tha in most cases our
-	// target range is close to the beginning of the sequence, and the seqences
+	// We use a linear search here because we assume that in most cases our
+	// target range is close to the beginning of the sequence, and the sequences
 	// are generally small for most reasonable files anyway.
 	for i := 0; ; i++ {
 		if i >= len(toks) {
diff --git a/vendor/modules.txt b/vendor/modules.txt
index b8e8f95b0d5..d5a9443a288 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -208,7 +208,7 @@ github.com/gorilla/mux
 github.com/grpc-ecosystem/grpc-opentracing/go/otgrpc
 # github.com/hashicorp/golang-lru v0.5.1
 github.com/hashicorp/golang-lru/simplelru
-# github.com/hashicorp/hcl/v2 v2.4.0
+# github.com/hashicorp/hcl/v2 v2.6.0
 github.com/hashicorp/hcl/v2
 github.com/hashicorp/hcl/v2/ext/customdecode
 github.com/hashicorp/hcl/v2/ext/userfunc