diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1ad5d41f..f25e3075 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -23,6 +23,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Fixed
 
 - Clarified for various mathematical functions the defined input and output ranges. Mention that `NaN` is returned outside of the defined input range where possible.
+- `apply_polygon`: Replaced outdated usage of `raster-cube` subtype with `datacube` and dimensions. [#524](https://github.com/Open-EO/openeo-processes/issues/524)
 - `aggregate_temporal` and `aggregate_temporal_period`: Clarified that the process throws a `DimensionNotAvailable` exception when no temporal dimension exists.
 - `aggregate_temporal_period`: Removed unused exception `DistinctDimensionLabelsRequired`
 - `aggregate_temporal_period`: Clarified that the definition of weeks follows ISO 8601
diff --git a/proposals/apply_polygon.json b/proposals/apply_polygon.json
index 21ef51fe..e50527f7 100644
--- a/proposals/apply_polygon.json
+++ b/proposals/apply_polygon.json
@@ -12,7 +12,16 @@
             "description": "A data cube.",
             "schema": {
                 "type": "object",
-                "subtype": "raster-cube"
+                "subtype": "datacube",
+                "dimensions": [
+                    {
+                        "type": "spatial",
+                        "axis": [
+                            "x",
+                            "y"
+                        ]
+                    }
+                ]
             }
         },
         {
@@ -44,7 +53,16 @@
                         "description": "A sub data cube of the original data cube. The sub data cubes provided cover the smallest possible grid-aligned extent of the corresponding polygon and all pixels outside of the polygon are replaced with the value given in `mask_value`.",
                         "schema": {
                             "type": "object",
-                            "subtype": "raster-cube"
+                            "subtype": "datacube",
+                            "dimensions": [
+                                {
+                                    "type": "spatial",
+                                    "axis": [
+                                        "x",
+                                        "y"
+                                    ]
+                                }
+                            ]
                         }
                     },
                     {
@@ -63,7 +81,16 @@
                         "description": "A data cube.",
                         "schema": {
                             "type": "object",
-                            "subtype": "raster-cube"
+                            "subtype": "datacube",
+                            "dimensions": [
+                                {
+                                    "type": "spatial",
+                                    "axis": [
+                                        "x",
+                                        "y"
+                                    ]
+                                }
+                            ]
                         }
                     }
                 }
@@ -103,7 +130,16 @@
         "description": "A data cube with the newly computed values and the same dimensions. The dimension properties (name, type, labels, reference system and resolution) remain unchanged.",
         "schema": {
             "type": "object",
-            "subtype": "raster-cube"
+            "subtype": "datacube",
+            "dimensions": [
+                {
+                    "type": "spatial",
+                    "axis": [
+                        "x",
+                        "y"
+                    ]
+                }
+            ]
         }
     },
     "exceptions": {