diff --git a/schema-docs.md b/schema-docs.md
index 044e92d5..044f9e2a 100644
--- a/schema-docs.md
+++ b/schema-docs.md
@@ -145,7 +145,7 @@ Usages:
 
 Constraints: 
 
-* `additionalProperties`: `true`
+* `additionalProperties`: `false`
 
 Usages:
 
@@ -157,7 +157,7 @@ Usages:
 [JSON Schema Source File](./schema/opentelemetry_configuration.json)
 <pre>{
   "type": "object",
-  "additionalProperties": true,
+  "additionalProperties": false,
   "properties": {
     "attribute_value_length_limit": {
       "type": [
@@ -4140,7 +4140,7 @@ No usages.
   "$defs": {
     "AttributeLimits": {
       "type": "object",
-      "additionalProperties": true,
+      "additionalProperties": false,
       "properties": {
         "attribute_value_length_limit": {
           "type": [
diff --git a/schema/opentelemetry_configuration.json b/schema/opentelemetry_configuration.json
index d388034e..c860f540 100644
--- a/schema/opentelemetry_configuration.json
+++ b/schema/opentelemetry_configuration.json
@@ -42,7 +42,7 @@
     "$defs": {
         "AttributeLimits": {
             "type": "object",
-            "additionalProperties": true,
+            "additionalProperties": false,
             "properties": {
                 "attribute_value_length_limit": {
                     "type": ["integer", "null"],