diff --git a/docs/deploy-rbd.md b/docs/deploy-rbd.md
index b80a5aa28..f8fa2dea1 100644
--- a/docs/deploy-rbd.md
+++ b/docs/deploy-rbd.md
@@ -64,7 +64,7 @@ make image-cephcsi
 | `mounter`                                                                                           | no                   | if set to `rbd-nbd`, use `rbd-nbd` on nodes that have `rbd-nbd` and `nbd` kernel modules to map rbd images                                                                                                                                                                                                                                                                                                                                                                                             |
 | `encrypted`                                                                                         | no                   | disabled by default, use `"true"` to enable LUKS encryption on PVC and `"false"` to disable it. **Do not change for existing storageclasses**                                                                                                                                                                                                                                                                                                                                                          |
 | `encryptionKMSID`                                                                                   | no                   | required if encryption is enabled and a kms is used to store passphrases                                                                                                                                                                                                                                                                                                                                                                                                                               |
-| `thickProvision`                                                                                    | no                   | if set to `"true"`, newly created RBD images will be completely allocated by writing zeros to it                                                                                                                                                                                                                                                                                                                                                                                                       |
+| `thickProvision`                                                                                    | no                   | if set to `"true"`, newly created RBD images will be completely allocated by writing zeros to it (**DEPRECATED**: recommended alternative solution is to use accounting/quotas for created volumes)                                                                                                                                                                                                                                                                                                    |
 
 **NOTE:** An accompanying CSI configuration file, needs to be provided to the
 running pods. Refer to [Creating CSI configuration](../examples/README.md#creating-csi-configuration)
diff --git a/examples/rbd/storageclass.yaml b/examples/rbd/storageclass.yaml
index 61182eb10..a53aace7c 100644
--- a/examples/rbd/storageclass.yaml
+++ b/examples/rbd/storageclass.yaml
@@ -29,9 +29,10 @@ parameters:
    # eg: pool: rbdpool
    pool: <rbd-pool-name>
 
-   # Set thickProvision to true if you want RBD images to be fully allocated on
-   # creation (thin provisioning is the default).
-   thickProvision: "false"
+   # Deprecated: Set thickProvision to true if you want RBD images to be fully
+   # allocated on creation (thin provisioning is the default).
+   # thickProvision: "false"
+
    # (required) RBD image features, CSI creates image with image-format 2
    # CSI RBD currently supports `layering`, `journaling`, `exclusive-lock`
    # features. If `journaling` is enabled, must enable `exclusive-lock` too.
diff --git a/internal/rbd/controllerserver.go b/internal/rbd/controllerserver.go
index 813634592..1b8c387bb 100644
--- a/internal/rbd/controllerserver.go
+++ b/internal/rbd/controllerserver.go
@@ -1502,6 +1502,10 @@ func (cs *ControllerServer) ControllerExpandVolume(
 	}, nil
 }
 
+// logThickProvisioningDeprecation makes sure the deprecation warning about
+// thick-provisining is logged only once.
+var logThickProvisioningDeprecation = true
+
 // isThickProvisionRequest returns true in case the request contains the
 // `thickProvision` option set to `true`.
 func isThickProvisionRequest(parameters map[string]string) bool {
@@ -1517,5 +1521,11 @@ func isThickProvisionRequest(parameters map[string]string) bool {
 		return false
 	}
 
+	if logThickProvisioningDeprecation {
+		log.WarningLogMsg("thick-provisioning is deprecated and will " +
+			"be removed in a future release")
+		logThickProvisioningDeprecation = false
+	}
+
 	return thickBool
 }