diff --git a/schemas/dca_config.schema.json b/schemas/dca_config.schema.json
index 6666472..527b416 100644
--- a/schemas/dca_config.schema.json
+++ b/schemas/dca_config.schema.json
@@ -79,12 +79,14 @@
     "schematic": {
       "description": "Schematic configuration options",
       "type": "object",
-      "requires": [ "manifest_generate", "model_validate", "model submit" ],
+      "requires": [ "manifest_generate", "model_validate", "model_submit" ],
+      "additionalProperties": false,
       "properties": {
         "manifest_generate": {
           "description": "Parameters to pass to Schematic manifest generate",
           "type": "object",
           "requires": [ "output_format", "use_annotations" ],
+          "additionalProperties": false,
           "properties": {
             "output_format": {
               "description": "Output type for downloaded manifests. excel or google_sheet",
@@ -101,6 +103,7 @@
           "description": "Parameteres to pass to Schematic model validate",
           "type": "object",
           "requires": [ "restrict_rules" ],
+          "additionalProperties": false,
           "properties": {
             "restrict_rules": {
               "description": "Schematic model validate option",
@@ -113,6 +116,7 @@
           "type": "object",
           "requires": [ "use_schema_labels", "table_manipulation",
                         "manifest_record_type", "hide_blanks" ],
+          "additionalProperties": false,              
           "properties": {
             "use_schema_labels": {
               "description": "Schematic model submit option",