diff --git a/go.mod b/go.mod
index 3b36089d..bf8149cb 100644
--- a/go.mod
+++ b/go.mod
@@ -6,12 +6,12 @@ require (
 	github.com/google/go-cmp v0.5.9
 	github.com/hashicorp/go-version v1.6.0
 	github.com/hashicorp/hc-install v0.4.0
-	github.com/hashicorp/terraform-exec v0.17.2
+	github.com/hashicorp/terraform-exec v0.17.3
 	github.com/hashicorp/terraform-json v0.14.0
 	github.com/mattn/go-colorable v0.1.13
 	github.com/mitchellh/cli v1.1.5
 	github.com/russross/blackfriday v1.6.0
-	github.com/zclconf/go-cty v1.10.0
+	github.com/zclconf/go-cty v1.12.1
 	golang.org/x/text v0.4.0
 )
 
diff --git a/go.sum b/go.sum
index c1dbafc1..cc7ead60 100644
--- a/go.sum
+++ b/go.sum
@@ -72,8 +72,8 @@ github.com/hashicorp/go-version v1.6.0 h1:feTTfFNnjP967rlCxM/I9g701jU+RN74YKx2mO
 github.com/hashicorp/go-version v1.6.0/go.mod h1:fltr4n8CU8Ke44wwGCBoEymUuxUHl09ZGVZPK5anwXA=
 github.com/hashicorp/hc-install v0.4.0 h1:cZkRFr1WVa0Ty6x5fTvL1TuO1flul231rWkGH92oYYk=
 github.com/hashicorp/hc-install v0.4.0/go.mod h1:5d155H8EC5ewegao9A4PUTMNPZaq+TbOzkJJZ4vrXeI=
-github.com/hashicorp/terraform-exec v0.17.2 h1:EU7i3Fh7vDUI9nNRdMATCEfnm9axzTnad8zszYZ73Go=
-github.com/hashicorp/terraform-exec v0.17.2/go.mod h1:tuIbsL2l4MlwwIZx9HPM+LOV9vVyEfBYu2GsO1uH3/8=
+github.com/hashicorp/terraform-exec v0.17.3 h1:MX14Kvnka/oWGmIkyuyvL6POx25ZmKrjlaclkx3eErU=
+github.com/hashicorp/terraform-exec v0.17.3/go.mod h1:+NELG0EqQekJzhvikkeQsOAZpsw0cv/03rbeQJqscAI=
 github.com/hashicorp/terraform-json v0.14.0 h1:sh9iZ1Y8IFJLx+xQiKHGud6/TSUCM0N8e17dKDpqV7s=
 github.com/hashicorp/terraform-json v0.14.0/go.mod h1:5A9HIWPkk4e5aeeXIBbkcOvaZbIYnAIkEyqP2pNSckM=
 github.com/huandu/xstrings v1.3.1/go.mod h1:y5/lhBue+AyNmUVz9RLU9xbLR0o4KIIExikq4ovT0aE=
@@ -153,8 +153,9 @@ github.com/vmihailenco/tagparser v0.1.1/go.mod h1:OeAg3pn3UbLjkWt+rN9oFYB6u/cQgq
 github.com/xanzy/ssh-agent v0.3.0 h1:wUMzuKtKilRgBAD1sUb8gOwwRr2FGoBVumcjoOACClI=
 github.com/xanzy/ssh-agent v0.3.0/go.mod h1:3s9xbODqPuuhK9JV1R321M/FlMZSBvE5aY6eAcqrDh0=
 github.com/zclconf/go-cty v1.2.0/go.mod h1:hOPWgoHbaTUnI5k4D2ld+GRpFJSCe6bCM7m1q/N4PQ8=
-github.com/zclconf/go-cty v1.10.0 h1:mp9ZXQeIcN8kAwuqorjH+Q+njbJKjLrvB2yIh4q7U+0=
 github.com/zclconf/go-cty v1.10.0/go.mod h1:vVKLxnk3puL4qRAv72AO+W99LUD4da90g3uUAzyuvAk=
+github.com/zclconf/go-cty v1.12.1 h1:PcupnljUm9EIvbgSHQnHhUr3fO6oFmkOrvs2BAFNXXY=
+github.com/zclconf/go-cty v1.12.1/go.mod h1:s9IfD1LK5ccNMSWCVFCE2rJfHiZgi7JijgeWIMfhLvA=
 github.com/zclconf/go-cty-debug v0.0.0-20191215020915-b22d67c1ba0b/go.mod h1:ZRKQfBXbGkpdV6QMzT3rU1kSTAnfu1dO8dPKjYprgj8=
 golang.org/x/crypto v0.0.0-20190219172222-a4c6cb3142f2/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=