diff --git a/schema/config-schema.json b/schema/config-schema.json
index 1da7bd6..94e88f3 100644
--- a/schema/config-schema.json
+++ b/schema/config-schema.json
@@ -71,6 +71,12 @@
           "sourceURL": {
             "type": "string"
           },
+          "datasetsURL": {
+            "type": "array",
+            "items": {
+              "type": "string"
+            }
+          },
           "version": {
             "type": "string"
           },
diff --git a/schema/config_test.go b/schema/config_test.go
index 20a691c..fd6b644 100644
--- a/schema/config_test.go
+++ b/schema/config_test.go
@@ -200,6 +200,29 @@ func TestConfig(t *testing.T) {
     ]
   }
 }
+`,
+			fail: true,
+		},
+		// expected failure: datasetsURL is not an array
+		{
+			config: `
+{
+  "descriptor": {
+    "name": "xyz-3-8B-Instruct",
+    "version": "3.1",
+    "sourceURL": "https://github.com/xyz/xyz3",
+    "datasetsURL": "https://example.com/dataset"
+  },
+  "config": {
+     "paramSize": "8b"
+  },
+  "modelfs": {
+    "type": "layers",
+    "diffIds": [
+       "sha256:1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef"
+    ]
+  }
+}
 `,
 			fail: true,
 		},