diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4d7e881..5c0e83d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 - Change default temporal property to datetime
 - Enable Converter.columns list and tuple types
+- Update STAC processing extension
 
 ## [v0.2.11] - 2025-10-09
 
diff --git a/tests/data-files/stac/collection-de-sh-json.json b/tests/data-files/stac/collection-de-sh-json.json
index eb46c7f..abe86d1 100644
--- a/tests/data-files/stac/collection-de-sh-json.json
+++ b/tests/data-files/stac/collection-de-sh-json.json
@@ -1,7 +1,7 @@
 {
   "stac_version": "1.1.0",
   "stac_extensions": [
-    "https://stac-extensions.github.io/processing/v1.1.0/schema.json"
+    "https://stac-extensions.github.io/processing/v1.2.0/schema.json"
   ],
   "type": "Collection",
   "id": "de_sh",
diff --git a/tests/data-files/stac/collection-de-sh-parquet.json b/tests/data-files/stac/collection-de-sh-parquet.json
index b9c904b..a1b8457 100644
--- a/tests/data-files/stac/collection-de-sh-parquet.json
+++ b/tests/data-files/stac/collection-de-sh-parquet.json
@@ -1,7 +1,7 @@
 {
   "stac_version": "1.1.0",
   "stac_extensions": [
-    "https://stac-extensions.github.io/processing/v1.1.0/schema.json",
+    "https://stac-extensions.github.io/processing/v1.2.0/schema.json",
     "https://stac-extensions.github.io/table/v1.2.0/schema.json"
   ],
   "type": "Collection",
diff --git a/tests/data-files/stac/collection-fiboa.json b/tests/data-files/stac/collection-fiboa.json
index 4f1b9aa..f13e504 100644
--- a/tests/data-files/stac/collection-fiboa.json
+++ b/tests/data-files/stac/collection-fiboa.json
@@ -1,7 +1,7 @@
 {
   "stac_version": "1.1.0",
   "stac_extensions": [
-    "https://stac-extensions.github.io/processing/v1.1.0/schema.json"
+    "https://stac-extensions.github.io/processing/v1.2.0/schema.json"
   ],
   "type": "Collection",
   "id": "de_nrw",
diff --git a/vecorel_cli/create_stac.py b/vecorel_cli/create_stac.py
index 3cd56b6..fbc4df7 100644
--- a/vecorel_cli/create_stac.py
+++ b/vecorel_cli/create_stac.py
@@ -22,7 +22,7 @@ class CreateStacCollection(BaseCommand):
     cmd_help = f"Creates a STAC Collection for {Registry.project} files."
     cmd_final_report = True
 
-    processing_extension = "https://stac-extensions.github.io/processing/v1.1.0/schema.json"
+    processing_extension = "https://stac-extensions.github.io/processing/v1.2.0/schema.json"
     table_extension = "https://stac-extensions.github.io/table/v1.2.0/schema.json"
 
     temporal_property = "datetime"
@@ -119,7 +119,7 @@ def create(
         temporal_property: Optional[str] = None,
     ) -> dict:
         """
-        Creates a collection for the field boundary datasets.
+        Creates a collection for the datasets.
         """
         if len(gdf) == 0:
             raise Exception("No data available.")