diff --git a/CITATION.cff b/CITATION.cff
index 5da07be..f3a512f 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -90,7 +90,7 @@ references:
     authors: *authors
     identifiers:
     - type: url
-      value: "https://stac-extensions.github.io/mlm/v1.3.0/schema.json"
+      value: "https://stac-extensions.github.io/mlm/v1.4.0/schema.json"
       description: "Latest extension URL used in 'stac_extensions' references."
     - type: url
       value: "https://stac-extensions.github.io/mlm/"
diff --git a/README.md b/README.md
index 4c99598..f588186 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@
 [![hackmd-github-sync-badge](https://hackmd.io/XveEXOukQ52ZdpUxT8maeA/badge)](https://hackmd.io/XveEXOukQ52ZdpUxT8maeA?both)
 
 - **Title:** Machine Learning Model Extension
-- **Identifier:** [https://stac-extensions.github.io/mlm/v1.3.0/schema.json](https://stac-extensions.github.io/mlm/v1.3.0/schema.json)
+- **Identifier:** [https://stac-extensions.github.io/mlm/v1.4.0/schema.json](https://stac-extensions.github.io/mlm/v1.4.0/schema.json)
 - **Field Name Prefix:** mlm
 - **Scope:** Collection, Item, Asset, Links
 - **Extension Maturity Classification:** Pilot
diff --git a/best-practices.md b/best-practices.md
index 2036523..7484b45 100644
--- a/best-practices.md
+++ b/best-practices.md
@@ -152,7 +152,7 @@ leading to a new MLM STAC Item definition (see also [STAC Version Extension](#ve
 {
   "id": "stac-item-model",
   "stac_extensions": [
-    "https://stac-extensions.github.io/mlm/v1.3.0/schema.json",
+    "https://stac-extensions.github.io/mlm/v1.4.0/schema.json",
     "https://stac-extensions.github.io/ml-aoi/v0.2.0/schema.json"
   ],
   "assets": {
@@ -227,7 +227,7 @@ that the model is properly instantiated from the expected weights, or that suffi
 ```json
 {
   "stac_extensions": [
-    "https://stac-extensions.github.io/mlm/v1.3.0/schema.json",
+    "https://stac-extensions.github.io/mlm/v1.4.0/schema.json",
     "https://stac-extensions.github.io/file/v2.1.0/schema.json"
   ],
   "assets": {
diff --git a/examples/item_bands_expression.json b/examples/item_bands_expression.json
index 38ba9f0..7081377 100644
--- a/examples/item_bands_expression.json
+++ b/examples/item_bands_expression.json
@@ -2,7 +2,7 @@
   "$comment": "Demonstrate the use of MLM and EO for bands description, with EO bands directly in the Model Asset.",
   "stac_version": "1.0.0",
   "stac_extensions": [
-    "https://stac-extensions.github.io/mlm/v1.3.0/schema.json",
+    "https://stac-extensions.github.io/mlm/v1.4.0/schema.json",
     "https://stac-extensions.github.io/eo/v1.1.0/schema.json",
     "https://stac-extensions.github.io/raster/v1.1.0/schema.json",
     "https://stac-extensions.github.io/file/v1.0.0/schema.json",
diff --git a/examples/item_basic.json b/examples/item_basic.json
index 3806446..57bec14 100644
--- a/examples/item_basic.json
+++ b/examples/item_basic.json
@@ -1,7 +1,7 @@
 {
   "stac_version": "1.0.0",
   "stac_extensions": [
-    "https://stac-extensions.github.io/mlm/v1.3.0/schema.json"
+    "https://stac-extensions.github.io/mlm/v1.4.0/schema.json"
   ],
   "type": "Feature",
   "id": "example-model",
diff --git a/examples/item_eo_and_raster_bands.json b/examples/item_eo_and_raster_bands.json
index 1f1d9ab..82f5313 100644
--- a/examples/item_eo_and_raster_bands.json
+++ b/examples/item_eo_and_raster_bands.json
@@ -1,7 +1,7 @@
 {
   "stac_version": "1.0.0",
   "stac_extensions": [
-    "https://stac-extensions.github.io/mlm/v1.3.0/schema.json",
+    "https://stac-extensions.github.io/mlm/v1.4.0/schema.json",
     "https://stac-extensions.github.io/eo/v1.1.0/schema.json",
     "https://stac-extensions.github.io/raster/v1.1.0/schema.json",
     "https://stac-extensions.github.io/file/v1.0.0/schema.json",
diff --git a/examples/item_eo_bands.json b/examples/item_eo_bands.json
index 605f3e6..794ed98 100644
--- a/examples/item_eo_bands.json
+++ b/examples/item_eo_bands.json
@@ -2,7 +2,7 @@
   "$comment": "Demonstrate the use of MLM and EO for bands description, with EO bands directly in the Model Asset.",
   "stac_version": "1.0.0",
   "stac_extensions": [
-    "https://stac-extensions.github.io/mlm/v1.3.0/schema.json",
+    "https://stac-extensions.github.io/mlm/v1.4.0/schema.json",
     "https://stac-extensions.github.io/eo/v1.1.0/schema.json",
     "https://stac-extensions.github.io/raster/v1.1.0/schema.json",
     "https://stac-extensions.github.io/file/v1.0.0/schema.json",
diff --git a/examples/item_eo_bands_summarized.json b/examples/item_eo_bands_summarized.json
index d3c8709..8c07a57 100644
--- a/examples/item_eo_bands_summarized.json
+++ b/examples/item_eo_bands_summarized.json
@@ -2,7 +2,7 @@
   "$comment": "Demonstrate the use of MLM and EO for bands description, with EO bands summarized in the Item properties and referenced by name in the Model Asset.",
   "stac_version": "1.0.0",
   "stac_extensions": [
-    "https://stac-extensions.github.io/mlm/v1.3.0/schema.json",
+    "https://stac-extensions.github.io/mlm/v1.4.0/schema.json",
     "https://stac-extensions.github.io/eo/v1.1.0/schema.json",
     "https://stac-extensions.github.io/raster/v1.1.0/schema.json",
     "https://stac-extensions.github.io/file/v1.0.0/schema.json",
diff --git a/examples/item_multi_io.json b/examples/item_multi_io.json
index e8f6b11..03206f7 100644
--- a/examples/item_multi_io.json
+++ b/examples/item_multi_io.json
@@ -1,7 +1,7 @@
 {
   "stac_version": "1.0.0",
   "stac_extensions": [
-    "https://stac-extensions.github.io/mlm/v1.3.0/schema.json",
+    "https://stac-extensions.github.io/mlm/v1.4.0/schema.json",
     "https://stac-extensions.github.io/raster/v1.1.0/schema.json",
     "https://stac-extensions.github.io/file/v1.0.0/schema.json",
     "https://stac-extensions.github.io/ml-aoi/v0.2.0/schema.json"
diff --git a/examples/item_raster_bands.json b/examples/item_raster_bands.json
index 33a29b9..d332cc1 100644
--- a/examples/item_raster_bands.json
+++ b/examples/item_raster_bands.json
@@ -1,7 +1,7 @@
 {
   "stac_version": "1.0.0",
   "stac_extensions": [
-    "https://stac-extensions.github.io/mlm/v1.3.0/schema.json",
+    "https://stac-extensions.github.io/mlm/v1.4.0/schema.json",
     "https://stac-extensions.github.io/raster/v1.1.0/schema.json",
     "https://stac-extensions.github.io/file/v1.0.0/schema.json",
     "https://stac-extensions.github.io/ml-aoi/v0.2.0/schema.json"
diff --git a/json-schema/schema.json b/json-schema/schema.json
index 813bb17..5a76347 100644
--- a/json-schema/schema.json
+++ b/json-schema/schema.json
@@ -1,6 +1,6 @@
 {
   "$schema": "http://json-schema.org/draft-07/schema#",
-  "$id": "https://stac-extensions.github.io/mlm/v1.3.0/schema.json",
+  "$id": "https://stac-extensions.github.io/mlm/v1.4.0/schema.json",
   "title": "Machine Learning Model STAC Extension Schema",
   "description": "This object represents the metadata for a Machine Learning Model (MLM) used in STAC documents.",
   "$comment": "Use 'allOf+if/then' for each 'type' to allow implementations to report more specific messages about the exact case in error (if any). Using only a 'oneOf/allOf' with the 'type' caused any incompatible 'type' to be reported first with a minimal and poorly described error by 'pystac'.",
@@ -111,7 +111,7 @@
         "stac_extensions": {
           "type": "array",
           "contains": {
-            "const": "https://stac-extensions.github.io/mlm/v1.3.0/schema.json"
+            "const": "https://stac-extensions.github.io/mlm/v1.4.0/schema.json"
           }
         }
       }
diff --git a/package.json b/package.json
index b6cbbdd..f5665ca 100644
--- a/package.json
+++ b/package.json
@@ -1,12 +1,12 @@
 {
   "name": "stac-mlm",
-  "version": "1.3.0",
+  "version": "1.4.0",
   "scripts": {
     "test": "npm run check-markdown && npm run check-examples",
     "check-markdown": "remark . -f -r .github/remark.yaml -i .remarkignore",
     "format-markdown": "remark . -f -r .github/remark.yaml -i .remarkignore -o",
-    "check-examples": "stac-node-validator . --lint --verbose --schemaMap https://stac-extensions.github.io/mlm/v1.3.0/schema.json=./json-schema/schema.json",
-    "format-examples": "stac-node-validator . --format --schemaMap https://stac-extensions.github.io/mlm/v1.3.0/schema.json=./json-schema/schema.json"
+    "check-examples": "stac-node-validator . --lint --verbose --schemaMap https://stac-extensions.github.io/mlm/v1.4.0/schema.json=./json-schema/schema.json",
+    "format-examples": "stac-node-validator . --format --schemaMap https://stac-extensions.github.io/mlm/v1.4.0/schema.json=./json-schema/schema.json"
   },
   "dependencies": {
     "remark-cli": "^8.0.0",
diff --git a/pyproject.toml b/pyproject.toml
index 28fa890..5fea07d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -88,7 +88,7 @@ stac-model = "stac_model.__main__:app"
 #   they are actually intented for versioning the MLM specification itself.
 #   To version 'stac-model', use the 'bump-my-version bump' operation.
 #   See also https://github.com/stac-extensions/mlm/blob/main/CONTRIBUTING.md#building-and-releasing
-current_version = "1.3.0"
+current_version = "1.4.0"
 parse = "(?P<major>\\d+)\\.(?P<minor>\\d+)\\.(?P<patch>\\d+)"
 serialize = ["{major}.{minor}.{patch}"]
 search = "{current_version}"
diff --git a/stac_model/schema.py b/stac_model/schema.py
index e2d2b5a..ce14a03 100644
--- a/stac_model/schema.py
+++ b/stac_model/schema.py
@@ -34,7 +34,7 @@
 )
 
 SchemaName = Literal["mlm"]
-SCHEMA_URI: str = "https://stac-extensions.github.io/mlm/v1.3.0/schema.json"
+SCHEMA_URI: str = "https://stac-extensions.github.io/mlm/v1.4.0/schema.json"
 PREFIX = f"{get_args(SchemaName)[0]}:"