diff --git a/README.md b/README.md
index 1e322c366..77b9b5a53 100644
--- a/README.md
+++ b/README.md
@@ -231,7 +231,19 @@ Additionally to all the methods declared in the [Parser-API](https://github.com/
 
 ## Spectral rulesets
 
-[Spectral](https://github.com/stoplightio/spectral) powers the validation of AsyncAPI documents within ParserJS. For this reason, it is possible to use your rulesets/rules or overwrite existing ones, passing the `ruleset` option to the Parser instance: 
+[Spectral](https://github.com/stoplightio/spectral) powers the validation of AsyncAPI documents within ParserJS. 
+The default [built-in rulesets](src/ruleset) are:
+
+- Core ruleset:
+  - Basic and global validation. Apply to all AsyncAPI Spec versions (with some exceptions).
+- Recommended ruleset:
+  - These are good practices. They won't create validation errors but warnings.
+- Specific rulesets per each AsyncAPI Spec version:
+  - Contain particular rulesets that apply only to documents of a particular Spec version:
+    - Core rulesets: Rules that generate validation errors if not fulfilled by a particular Spec version.
+    - Recommended rulesets: Best practices for a particular Spec version
+
+It is possible to use your rulesets/rules or overwrite existing ones, passing the `ruleset` option to the Parser instance: 
 
 ```ts
 import { Parser, stringify, unstringify } from '@asyncapi/parser';
diff --git a/package-lock.json b/package-lock.json
index b59fc41d2..4c4a34387 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -181,15 +181,6 @@
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@@ -10806,9 +10797,9 @@
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+      "resolved": "https://registry.npmjs.org/ws/-/ws-7.5.10.tgz",
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@@ -11225,12 +11216,6 @@
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@@ -19418,9 +19403,9 @@
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+          "version": "7.5.10",
+          "resolved": "https://registry.npmjs.org/ws/-/ws-7.5.10.tgz",
+          "integrity": "sha512-+dbF1tHwZpXcbOJdVOkzLDxZP1ailvSxM6ZweXTegylPny803bFhA+vqBYw4s31NSAk4S2Qz+AKXK9a4wkdjcQ==",
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