diff --git a/api/src/main/java/org/eclipse/microprofile/openapi/annotations/OpenAPIDefinition.java b/api/src/main/java/org/eclipse/microprofile/openapi/annotations/OpenAPIDefinition.java
index 9f2da51e..fdfb53ef 100644
--- a/api/src/main/java/org/eclipse/microprofile/openapi/annotations/OpenAPIDefinition.java
+++ b/api/src/main/java/org/eclipse/microprofile/openapi/annotations/OpenAPIDefinition.java
@@ -102,6 +102,15 @@
      */
     PathItem[] webhooks() default {};
 
+    /**
+     * The identifier of the default JSON schema dialect for schemas in this document.
+     *
+     * @return the identifier of the default JSON schema dialect for schemas in this document
+     *
+     * @since 4.1
+     */
+    String jsonSchemaDialect() default "";
+
     /**
      * An element to hold a set of reusable objects for different aspects of the OpenAPI Specification (OAS).
      *
diff --git a/api/src/main/java/org/eclipse/microprofile/openapi/annotations/package-info.java b/api/src/main/java/org/eclipse/microprofile/openapi/annotations/package-info.java
index 6bbd7b54..0fc7a193 100644
--- a/api/src/main/java/org/eclipse/microprofile/openapi/annotations/package-info.java
+++ b/api/src/main/java/org/eclipse/microprofile/openapi/annotations/package-info.java
@@ -34,5 +34,5 @@
  * </pre>
  */
 
-@org.osgi.annotation.versioning.Version("1.2")
+@org.osgi.annotation.versioning.Version("1.3")
 package org.eclipse.microprofile.openapi.annotations;
\ No newline at end of file
diff --git a/tck/src/main/java/org/eclipse/microprofile/openapi/apps/petstore/PetStoreApp.java b/tck/src/main/java/org/eclipse/microprofile/openapi/apps/petstore/PetStoreApp.java
index 92792221..87da785c 100644
--- a/tck/src/main/java/org/eclipse/microprofile/openapi/apps/petstore/PetStoreApp.java
+++ b/tck/src/main/java/org/eclipse/microprofile/openapi/apps/petstore/PetStoreApp.java
@@ -51,7 +51,8 @@
                    },
                    components = @Components(schemas = {
                            @Schema(name = "Lizard", implementation = Lizard.class)
-                   }))
+                   }),
+                   jsonSchemaDialect = "https://spec.openapis.org/oas/3.1/dialect/base")
 @Schema(externalDocs = @ExternalDocumentation(url = "http://swagger.io", description = "Find out more about our store"))
 public class PetStoreApp extends Application {
     @Override
diff --git a/tck/src/main/java/org/eclipse/microprofile/openapi/tck/PetStoreAppTest.java b/tck/src/main/java/org/eclipse/microprofile/openapi/tck/PetStoreAppTest.java
index 45816cd7..98882677 100644
--- a/tck/src/main/java/org/eclipse/microprofile/openapi/tck/PetStoreAppTest.java
+++ b/tck/src/main/java/org/eclipse/microprofile/openapi/tck/PetStoreAppTest.java
@@ -303,4 +303,10 @@ public void testExtensionPlacement(String type) {
         vr.body(opPath + ".responses.'503'.content.'application/xml'",
                 hasEntry(equalTo("x-notavailable-ext"), equalTo("true")));
     }
+
+    @Test(dataProvider = "formatProvider")
+    public void testSchemaDialect(String type) {
+        ValidatableResponse vr = callEndpoint(type);
+        vr.body("jsonSchemaDialect", equalTo("https://spec.openapis.org/oas/3.1/dialect/base"));
+    }
 }