diff --git a/CHANGELOG.md b/CHANGELOG.md
index 57c51724..e8e80d28 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
     - `any`
     - `array_find`
     - `drop_dimension`
+    - `mask_polygon`
     - `load_uploaded_files`
     - `rename_labels`
 - Added further examples
@@ -26,8 +27,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - `aggregate_polygon`: The data cube implicitly gets restricted to the bounds of the polygons as if `filter_polygon` would have been used beforehand. [#101](https://github.com/Open-EO/openeo-processes/issues/101)
 - `clip`: Works on a single value instead on arrays (replaced parameter `data` with `x`). [#75](https://github.com/Open-EO/openeo-processes/issues/75)
 - `debug`: Replaced with a completely new definition. [#82](https://github.com/Open-EO/openeo-processes/issues/71), [API#100](https://github.com/Open-EO/openeo-api/issues/100), [API#214](https://github.com/Open-EO/openeo-api/issues/214)
-- `filter_bands`: Merged parameters `bands` and `common_names`. [#77]( https://github.com/Open-EO/openeo-processes/issues/77)
-- `load_collection`: Parameter `bands` accepts common band names. [#77]( https://github.com/Open-EO/openeo-processes/issues/77)
+- `filter_bands`: Merged parameters `bands` and `common_names`. [#77](https://github.com/Open-EO/openeo-processes/issues/77)
+- `load_collection`: Parameter `bands` accepts common band names. [#77](https://github.com/Open-EO/openeo-processes/issues/77)
 - `ndvi` and `normalized_difference`: Rewrite of the processes with a completely new behavior. [#60](https://github.com/Open-EO/openeo-processes/issues/60)
 - `resample_spatial`: Default value of parameter `align` changed from `lower-left` to `upper-left`. [#61](https://github.com/Open-EO/openeo-processes/issues/61)
 - The following operations work on two values instead on a sequence of values: `and`, `divide`, `multiply`, `or`, `subtract`, `xor`. [#85](https://github.com/Open-EO/openeo-processes/issues/85)
@@ -37,9 +38,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - `filter_bbox`, `load_collection`, `resample_spatial`: PROJ definitions are deprecated in favor of EPSG codes, WKT2 and PROJJSON. [#58](https://github.com/Open-EO/openeo-processes/issues/58)
 
 ### Removed
-- `reduce`: The `null` (no-operation) reducer has been removed. Use the process `drop_dimension` instead. [#57](https://github.com/Open-EO/openeo-processes/issues/57)
 - The following operations don't support `ignore_nodata` any longer: `and`, `divide`, `multiply`, `or`, `subtract`, `xor`. [#85](https://github.com/Open-EO/openeo-processes/issues/85)
 - `aggregate_polygon`: Doesn't allow returning a GeoJSON any longer.
+- `mask`: The mask parameter doesn't accept vectors (polygons) any longer. Use process `mask_polygon` instead. [#110](https://github.com/Open-EO/openeo-processes/issues/110)
+- `reduce`: The `null` (no-operation) reducer has been removed. Use the process `drop_dimension` instead. [#57](https://github.com/Open-EO/openeo-processes/issues/57)
 - Removed processes:
     - `find_collections`: Use `load_collection` and manual data discovery through the clients. [API#52](https://github.com/Open-EO/openeo-api/issues/52)
     - `output`: Use `debug` instead.
diff --git a/mask.json b/mask.json
index 8c44f7d1..e161e563 100644
--- a/mask.json
+++ b/mask.json
@@ -1,7 +1,7 @@
 {
     "id": "mask",
-    "summary": "Apply a mask",
-    "description": "Applies a mask to a raster data cube. A mask can either be specified as:\n\n* **Raster data cube** for which parallel pixels among `data` and `mask` are compared and those pixels in `data` are replaced, which are non-zero (for numbers) or `true` (for boolean values) in `mask`.\n* **GeoJSON or vector data cube** containing one or more polygons. All pixels for which the point at the pixel center intersects with the corresponding polygon (as defined in the Simple Features standard by the OGC) are replaced.\n\nThe pixel values are replaced with the value specified for `replacement`, which defaults to `null` (no data). No data values will be left untouched by the masking operation.",
+    "summary": "Apply a raster mask",
+    "description": "Applies a mask to a raster data cube. To apply a vector mask use ``mask_polygon()``.\n\nA mask is a raster data cube for which parallel pixels among `data` and `mask` are compared and those pixels in `data` are replaced which are non-zero (for numbers) or `true` (for boolean values). The pixel values are replaced with the value specified for `replacement`, which defaults to `null` (no data).",
     "categories": [
         "masks"
     ],
@@ -20,25 +20,15 @@
             "required": true
         },
         "mask": {
-            "description": "Either a raster data cube, a GeoJSON object or a vector data cube.\n\nFor **raster data cubes**, both data cubes must be compatible so that every pixel in `data` has a parallel element in `mask`.\n\nFor **GeoJSON** the provided types can be one of the following:\n\n* A `Polygon` geometry,\n* a `GeometryCollection` containing Polygons,\n* a `Feature` with a `Polygon` geometry or\n* a `FeatureCollection` containing `Feature`s with a `Polygon` geometry.",
-            "schema": [
-                {
-                    "type": "object",
-                    "subtype": "geojson"
-                },
-                {
-                    "type": "object",
-                    "subtype": "vector-cube"
-                },
-                {
-                    "type": "object",
-                    "subtype": "raster-cube"
-                }
-            ],
+            "description": "A mask as raster data cube. Every pixel in `data` must have a parallel element in `mask`.",
+            "schema": {
+                "type": "object",
+                "subtype": "raster-cube"
+            },
             "required": true
         },
         "replacement": {
-            "description": "The value used to replace non-zero and `true` values with.",
+            "description": "The value used to replace masked values with.",
             "schema": {
                 "type": [
                     "number",
@@ -56,12 +46,5 @@
             "type": "object",
             "subtype": "raster-cube"
         }
-    },
-    "links": [
-        {
-            "href": "http://www.opengeospatial.org/standards/sfa",
-            "rel": "about",
-            "title": "Simple Features standard by the OGC"
-        }
-    ]
+    }
 }
\ No newline at end of file
diff --git a/mask_polygon.json b/mask_polygon.json
new file mode 100644
index 00000000..1614b850
--- /dev/null
+++ b/mask_polygon.json
@@ -0,0 +1,71 @@
+{
+    "id": "mask_polygon",
+    "summary": "Apply a polygon mask",
+    "description": "Applies a polygon mask to a raster data cube. To apply a raster mask use ``mask()``.\n\nAll pixels for which the point at the pixel center **does not** intersect with any polygon (as defined in the Simple Features standard by the OGC) are replaced. This behaviour can be inverted by setting the parameter `inside` to `true`.\n\nThe pixel values are replaced with the value specified for `replacement`, which defaults to `null` (no data). No data values in `data` will be left untouched by the masking operation.",
+    "categories": [
+        "masks"
+    ],
+    "parameter_order": [
+        "data",
+        "mask",
+        "replacement",
+        "inside"
+    ],
+    "parameters": {
+        "data": {
+            "description": "A raster data cube.",
+            "schema": {
+                "type": "object",
+                "subtype": "raster-cube"
+            },
+            "required": true
+        },
+        "mask": {
+            "description": "A GeoJSON object or a vector data cube containing a polygon. The provided feature types can be one of the following:\n\n* A `Polygon` geometry,\n* a `GeometryCollection` containing Polygons,\n* a `Feature` with a `Polygon` geometry or\n* a `FeatureCollection` containing `Feature`s with a `Polygon` geometry.",
+            "schema": [
+                {
+                    "type": "object",
+                    "subtype": "geojson"
+                },
+                {
+                    "type": "object",
+                    "subtype": "vector-cube"
+                }
+            ],
+            "required": true
+        },
+        "replacement": {
+            "description": "The value used to replace masked values with.",
+            "schema": {
+                "type": [
+                    "number",
+                    "boolean",
+                    "string",
+                    "null"
+                ]
+            },
+            "default": null
+        },
+        "inside": {
+            "description": "If set to `true` all pixels for which the point at the pixel center **does** intersect with any polygon are replaced.",
+            "schema": {
+                "type": "boolean"
+            },
+            "default": false
+        }
+    },
+    "returns": {
+        "description": "The masked raster data cube.",
+        "schema": {
+            "type": "object",
+            "subtype": "raster-cube"
+        }
+    },
+    "links": [
+        {
+            "href": "http://www.opengeospatial.org/standards/sfa",
+            "rel": "about",
+            "title": "Simple Features standard by the OGC"
+        }
+    ]
+}
\ No newline at end of file