diff --git a/goshopify.go b/goshopify.go
index e25d809a..e741091d 100644
--- a/goshopify.go
+++ b/goshopify.go
@@ -22,6 +22,8 @@ import (
 
 const (
 	UserAgent = "goshopify/1.0.0"
+	// UnstableApiVersion Shopify API version for accessing unstable API features
+	UnstableApiVersion = "unstable"
 
 	// Shopify API version YYYY-MM - defaults to admin which uses the oldest stable version of the api
 	defaultApiPathPrefix = "admin"
@@ -87,7 +89,7 @@ type Client struct {
 	Customer                   CustomerService
 	CustomerAddress            CustomerAddressService
 	Order                      OrderService
-	Fulfillment		   FulfillmentService
+	Fulfillment                FulfillmentService
 	DraftOrder                 DraftOrderService
 	Shop                       ShopService
 	Webhook                    WebhookService
diff --git a/options.go b/options.go
index c3016d40..7f8a75d1 100644
--- a/options.go
+++ b/options.go
@@ -9,7 +9,7 @@ type Option func(c *Client)
 func WithVersion(apiVersion string) Option {
 	return func(c *Client) {
 		pathPrefix := defaultApiPathPrefix
-		if len(apiVersion) > 0 && apiVersionRegex.MatchString(apiVersion) {
+		if len(apiVersion) > 0 && (apiVersionRegex.MatchString(apiVersion) || apiVersion == UnstableApiVersion) {
 			pathPrefix = fmt.Sprintf("admin/api/%s", apiVersion)
 		}
 		c.apiVersion = apiVersion
diff --git a/options_test.go b/options_test.go
index 76dadca5..64e00e25 100644
--- a/options_test.go
+++ b/options_test.go
@@ -53,3 +53,11 @@ func TestWithLogger(t *testing.T) {
 		t.Errorf("WithLogger expected logs to match %v != %v", c.log, logger)
 	}
 }
+
+func TestWithUnstableVersion(t *testing.T) {
+	c := NewClient(app, "fooshop", "abcd", WithVersion(UnstableApiVersion))
+	expected := fmt.Sprintf("admin/api/%s", UnstableApiVersion)
+	if c.pathPrefix != expected {
+		t.Errorf("WithVersion client.pathPrefix = %s, expected %s", c.pathPrefix, expected)
+	}
+}