diff --git a/Gopkg.lock b/Gopkg.lock
index ba9385d68..705f66029 100644
--- a/Gopkg.lock
+++ b/Gopkg.lock
@@ -272,14 +272,14 @@
 
 [[projects]]
   branch = "master"
-  digest = "1:dceb82de160ec21c5e3a22d48db99932f82f40c74bd7cad8bc23b7455613836b"
+  digest = "1:266d45292b063fa39002dd5c2fd77ec0a9f448f099fc261dcb91d04fd964335c"
   name = "github.com/docker/cnab-to-oci"
   packages = [
     "converter",
     "remotes",
   ]
   pruneopts = "NUT"
-  revision = "1880d9f8741aa6fc3edbce01d172432bb6190b78"
+  revision = "093790100fa9ecf0b5b5e56292d820a0e618da8b"
 
 [[projects]]
   digest = "1:d29e07dc6fff1d592442bdf6b947f3a89d418ac6d65344d4e048c64a7cdd511c"
diff --git a/vendor/github.com/docker/cnab-to-oci/converter/convert.go b/vendor/github.com/docker/cnab-to-oci/converter/convert.go
index 6bd7e80cc..f0cced752 100644
--- a/vendor/github.com/docker/cnab-to-oci/converter/convert.go
+++ b/vendor/github.com/docker/cnab-to-oci/converter/convert.go
@@ -102,6 +102,7 @@ func ConvertOCIIndexToBundle(ix *ocischemav1.Index, config *BundleConfig, origin
 		Actions:     config.Actions,
 		Credentials: config.Credentials,
 		Parameters:  config.Parameters,
+		Custom:      config.Custom,
 	}
 	if err := parseTopLevelAnnotations(ix.Annotations, b); err != nil {
 		return nil, err
diff --git a/vendor/github.com/docker/cnab-to-oci/converter/types.go b/vendor/github.com/docker/cnab-to-oci/converter/types.go
index df460ada8..d00e43581 100644
--- a/vendor/github.com/docker/cnab-to-oci/converter/types.go
+++ b/vendor/github.com/docker/cnab-to-oci/converter/types.go
@@ -22,6 +22,7 @@ type BundleConfig struct {
 	Actions       map[string]bundle.Action              `json:"actions,omitempty" mapstructure:"actions,omitempty"`
 	Parameters    map[string]bundle.ParameterDefinition `json:"parameters" mapstructure:"parameters"`
 	Credentials   map[string]bundle.Location            `json:"credentials" mapstructure:"credentials"`
+	Custom        map[string]interface{}                `json:"custom,omitempty" mapstructure:"custom"`
 }
 
 // PreparedBundleConfig contains the config blob, image manifest (and fallback), and descriptors for a CNAB config
@@ -40,6 +41,7 @@ func CreateBundleConfig(b *bundle.Bundle) *BundleConfig {
 		Actions:       b.Actions,
 		Parameters:    b.Parameters,
 		Credentials:   b.Credentials,
+		Custom:        b.Custom,
 	}
 }