diff --git a/website/docs/r/cluster.html.markdown b/website/docs/r/cluster.html.markdown
index dcdf611093..e3a2cb179a 100644
--- a/website/docs/r/cluster.html.markdown
+++ b/website/docs/r/cluster.html.markdown
@@ -178,7 +178,10 @@ resource "mongodbatlas_cluster" "cluster-test" {
     - `AZURE` - Microsoft Azure
     - `TENANT` - A multi-tenant deployment on one of the supported cloud service providers. Only valid when providerSettings.instanceSizeName is either M2 or M5.
 * `name` - (Required) Name of the cluster as it appears in Atlas. Once the cluster is created, its name cannot be changed.
-* `provider_instance_size_name` - (Required) Atlas provides different instance sizes, each with a default storage capacity and RAM size. The instance size you select is used for all the data-bearing servers in your cluster. See [Create a Cluster](https://docs.atlas.mongodb.com/reference/api/clusters-create-one/) `providerSettings.instanceSizeName` for valid values and default resources.
+* `provider_instance_size_name` - (Required) Atlas provides different instance sizes, each with a default storage capacity and RAM size. The instance size you select is used for all the data-bearing servers in your cluster. See [Create a Cluster](https://docs.atlas.mongodb.com/reference/api/clusters-create-one/) `providerSettings.instanceSizeName` for valid values and default resources.  
+
+Note free tier (M0) creation is not supported by the Atlas API and hence not supported by this provider.
+
 * `auto_scaling_disk_gb_enabled` - (Optional) Specifies whether disk auto-scaling is enabled. The default is true.
     - Set to `true` to enable disk auto-scaling.
     - Set to `false` to disable disk auto-scaling.
@@ -209,7 +212,7 @@ resource "mongodbatlas_cluster" "cluster-test" {
     The minimum disk size for dedicated clusters is 10GB for AWS and GCP. If you specify diskSizeGB with a lower disk size, Atlas defaults to the minimum disk size value.
 
 * `encryption_at_rest_provider` - (Optional) Set the Encryption at Rest parameter.  Possible values are AWS, GCP, AZURE or NONE.  Requires M10 or greater and for backup_enabled to be false or omitted.
-* `mongo_db_major_version` - (Optional) Version of the cluster to deploy. Atlas supports the following MongoDB versions for M10+ clusters: `3.4`, `3.6` or `4.0`. You must set this value to `4.0` if `provider_instance_size_name` is either M2 or M5.
+* `mongo_db_major_version` - (Optional) Version of the cluster to deploy. Atlas supports the following MongoDB versions for M10+ clusters: `3.6`, `4.0`, or `4.2`. You must set this value to `4.2` if `provider_instance_size_name` is either M2 or M5.
 * `num_shards` - (Optional) Selects whether the cluster is a replica set or a sharded cluster. If you use the replicationSpecs parameter, you must set num_shards.
 * `provider_backup_enabled` - (Optional) Flag indicating if the cluster uses Cloud Provider Snapshots for backups.