diff --git a/.github/workflows/oas-check.yml b/.github/workflows/oas-check.yml
index 0df85f2d..3c06d7a8 100644
--- a/.github/workflows/oas-check.yml
+++ b/.github/workflows/oas-check.yml
@@ -2,18 +2,14 @@ name: check-oas
 
 on:
   push:
-    paths:
-      - "src/objects/api/*/openapi.yaml"
-      - .github/workflows/oas-check.yml
-    branches:
-      - '**'
   workflow_dispatch:
 
 jobs:
   open-api-workflow-check-oas:
-    uses: maykinmedia/open-api-workflows/.github/workflows/oas-check.yml@v1
+    uses: maykinmedia/open-api-workflows/.github/workflows/oas-check.yml@v5.0.0
     with:
       schema-path: 'src/objects/api/v2/openapi.yaml'
+      schema-options: 'src/objects/api/v2/openapi.yaml'
       python-version: '3.11'
       django-settings-module: 'objects.conf.ci'
       apt-packages: 'libgdal-dev gdal-bin'
diff --git a/bin/generate_schema.sh b/bin/generate_schema.sh
index 61907011..7748d781 100755
--- a/bin/generate_schema.sh
+++ b/bin/generate_schema.sh
@@ -9,4 +9,4 @@ export SCHEMA_PATH=src/objects/api/v2/openapi.yaml
 
 OUTPUT_FILE=$1
 
-src/manage.py spectacular --file ${OUTPUT_FILE:-$SCHEMA_PATH} --validate
+src/manage.py spectacular --file ${OUTPUT_FILE:-$SCHEMA_PATH} --validate --lang="en"
diff --git a/requirements/base.txt b/requirements/base.txt
index 6a3812f9..58ee7292 100644
--- a/requirements/base.txt
+++ b/requirements/base.txt
@@ -57,7 +57,7 @@ click-plugins==1.1.1
     # via celery
 click-repl==0.3.0
     # via celery
-commonground-api-common==2.5.1
+commonground-api-common==2.5.2
     # via open-api-framework
 coreapi==2.3.3
     # via commonground-api-common
diff --git a/requirements/ci.txt b/requirements/ci.txt
index 376ac008..748ba2c8 100644
--- a/requirements/ci.txt
+++ b/requirements/ci.txt
@@ -115,7 +115,7 @@ click-repl==0.3.0
     #   celery
 codecov==2.1.13
     # via -r requirements/test-tools.in
-commonground-api-common==2.5.1
+commonground-api-common==2.5.2
     # via
     #   -c requirements/base.txt
     #   -r requirements/base.txt
diff --git a/requirements/dev.txt b/requirements/dev.txt
index bf35084f..d7c75184 100644
--- a/requirements/dev.txt
+++ b/requirements/dev.txt
@@ -143,7 +143,7 @@ codecov==2.1.13
     # via
     #   -c requirements/ci.txt
     #   -r requirements/ci.txt
-commonground-api-common==2.5.1
+commonground-api-common==2.5.2
     # via
     #   -c requirements/ci.txt
     #   -r requirements/ci.txt
diff --git a/src/objects/api/v2/openapi.yaml b/src/objects/api/v2/openapi.yaml
index 7fa40c26..a7f3efce 100644
--- a/src/objects/api/v2/openapi.yaml
+++ b/src/objects/api/v2/openapi.yaml
@@ -800,6 +800,8 @@ paths:
 components:
   schemas:
     GeoJSONGeometry:
+      title: GeoJSONGeometry
+      type: object
       oneOf:
       - $ref: '#/components/schemas/Point'
       - $ref: '#/components/schemas/MultiPoint'
@@ -810,14 +812,6 @@ components:
       - $ref: '#/components/schemas/GeometryCollection'
       discriminator:
         propertyName: type
-        mapping:
-          Point: '#/components/schemas/Point'
-          MultiPoint: '#/components/schemas/MultiPoint'
-          LineString: '#/components/schemas/LineString'
-          MultiLineString: '#/components/schemas/MultiLineString'
-          Polygon: '#/components/schemas/Polygon'
-          MultiPolygon: '#/components/schemas/MultiPolygon'
-          GeometryCollection: '#/components/schemas/GeometryCollection'
     GeoWithin:
       type: object
       properties:
@@ -833,7 +827,8 @@ components:
         url: https://tools.ietf.org/html/rfc7946#section-3.1
       properties:
         type:
-          type: string
+          allOf:
+          - $ref: '#/components/schemas/TypeEnum'
           description: The geometry type
     GeometryCollection:
       type: object
@@ -986,11 +981,11 @@ components:
         url:
           type: string
           format: uri
+          readOnly: true
           minLength: 1
           maxLength: 1000
           description: URL reference to this object. This is the unique identification
             and location of this object.
-          readOnly: true
         uuid:
           type: string
           format: uuid
@@ -1143,11 +1138,11 @@ components:
         url:
           type: string
           format: uri
+          readOnly: true
           minLength: 1
           maxLength: 1000
           description: URL reference to this object. This is the unique identification
             and location of this object.
-          readOnly: true
         uuid:
           type: string
           format: uuid
@@ -1228,6 +1223,18 @@ components:
               type: array
               items:
                 $ref: '#/components/schemas/Point2D'
+    TypeEnum:
+      type: string
+      enum:
+      - Point
+      - MultiPoint
+      - LineString
+      - MultiLineString
+      - Polygon
+      - MultiPolygon
+      - Feature
+      - FeatureCollection
+      - GeometryCollection
   securitySchemes:
     tokenAuth:
       type: apiKey
diff --git a/src/objects/utils/apps.py b/src/objects/utils/apps.py
index b02dd150..5245b233 100644
--- a/src/objects/utils/apps.py
+++ b/src/objects/utils/apps.py
@@ -1,5 +1,19 @@
 from django.apps import AppConfig
 
+from drf_spectacular.extensions import OpenApiFilterExtension
+
+
+def unregister_camelize_filter_extension():
+    """
+    CamelizeFilterExtension from vng_api_common is loaded automatically
+    and cannot be removed using SPECTACULAR_SETTINGS.
+    """
+    OpenApiFilterExtension._registry = [
+        ext
+        for ext in OpenApiFilterExtension._registry
+        if ext.__name__ != "CamelizeFilterExtension"
+    ]
+
 
 class UtilsConfig(AppConfig):
     name = "objects.utils"
@@ -7,3 +21,5 @@ class UtilsConfig(AppConfig):
     def ready(self):
         from . import checks  # noqa
         from . import oas_extensions  # noqa
+
+        unregister_camelize_filter_extension()