diff --git a/openstack/blockstorage/v1/volumes/requests.go b/openstack/blockstorage/v1/volumes/requests.go
index ad4e574..253aaf7 100644
--- a/openstack/blockstorage/v1/volumes/requests.go
+++ b/openstack/blockstorage/v1/volumes/requests.go
@@ -83,10 +83,8 @@
 		return res
 	}
 
-	_, res.Err = client.Request("POST", createURL(client), gophercloud.RequestOpts{
-		OkCodes:      []int{200, 201},
-		JSONBody:     &reqBody,
-		JSONResponse: &res.Body,
+	_, res.Err = client.Post(createURL(client), reqBody, &res.Body, &gophercloud.RequestOpts{
+		OkCodes: []int{200, 201},
 	})
 	return res
 }
@@ -94,7 +92,7 @@
 // Delete will delete the existing Volume with the provided ID.
 func Delete(client *gophercloud.ServiceClient, id string) DeleteResult {
 	var res DeleteResult
-	_, res.Err = client.Request("DELETE", deleteURL(client, id), gophercloud.RequestOpts{})
+	_, res.Err = client.Delete(deleteURL(client, id), nil)
 	return res
 }
 
@@ -102,9 +100,7 @@
 // from the response, call the Extract method on the GetResult.
 func Get(client *gophercloud.ServiceClient, id string) GetResult {
 	var res GetResult
-	_, res.Err = client.Request("GET", getURL(client, id), gophercloud.RequestOpts{
-		JSONResponse: &res.Body,
-	})
+	_, res.Err = client.Get(getURL(client, id), &res.Body, nil)
 	return res
 }
 
@@ -200,10 +196,8 @@
 		return res
 	}
 
-	_, res.Err = client.Request("PUT", updateURL(client, id), gophercloud.RequestOpts{
-		OkCodes:      []int{200},
-		JSONBody:     &reqBody,
-		JSONResponse: &res.Body,
+	_, res.Err = client.Put(updateURL(client, id), reqBody, &res.Body, &gophercloud.RequestOpts{
+		OkCodes: []int{200},
 	})
 	return res
 }