diff --git a/package-lock.json b/package-lock.json
index 8227f2b94ae..e779e02c882 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -18,6 +18,7 @@
         "@asyncapi/openapi-schema-parser": "^3.0.3",
         "@asyncapi/optimizer": "^0.2.1",
         "@asyncapi/parser": "^2.1.0",
+        "@asyncapi/protobuf-schema-parser": "3.0.0",
         "@asyncapi/raml-dt-schema-parser": "^4.0.3",
         "@asyncapi/studio": "^0.17.3",
         "@oclif/core": "^1.26.2",
diff --git a/package.json b/package.json
index dcb12f50548..6a195246171 100644
--- a/package.json
+++ b/package.json
@@ -18,6 +18,7 @@
     "@asyncapi/optimizer": "^0.2.1",
     "@asyncapi/parser": "^2.1.0",
     "@asyncapi/raml-dt-schema-parser": "^4.0.3",
+    "@asyncapi/protobuf-schema-parser": "3.0.0",
     "@asyncapi/studio": "^0.17.3",
     "@oclif/core": "^1.26.2",
     "@oclif/errors": "^1.3.6",
diff --git a/src/global.d.ts b/src/global.d.ts
index ac3f42f6b27..c1ce8ec908d 100644
--- a/src/global.d.ts
+++ b/src/global.d.ts
@@ -3,3 +3,4 @@ declare module '@asyncapi/specs';
 declare module '@asyncapi/openapi-schema-parser';
 declare module '@asyncapi/avro-schema-parser';
 declare module '@asyncapi/raml-dt-schema-parser';
+declare module '@asyncapi/protobuf-schema-parser';
diff --git a/src/parser.ts b/src/parser.ts
index 314ecdb06d9..0a7b3c62dee 100644
--- a/src/parser.ts
+++ b/src/parser.ts
@@ -3,6 +3,7 @@ import { Parser, convertToOldAPI } from '@asyncapi/parser/cjs';
 import { AvroSchemaParser } from '@asyncapi/avro-schema-parser';
 import { OpenAPISchemaParser } from '@asyncapi/openapi-schema-parser';
 import { RamlDTSchemaParser } from '@asyncapi/raml-dt-schema-parser';
+import { ProtoBuffSchemaParser } from '@asyncapi/protobuf-schema-parser';
 import { getDiagnosticSeverity } from '@stoplight/spectral-core';
 import { html, json, junit, stylish, teamcity, text, pretty } from '@stoplight/spectral-cli/dist/formatters';
 import { OutputFormat } from '@stoplight/spectral-cli/dist/services/config';
@@ -26,6 +27,7 @@ const parser = new Parser({
 parser.registerSchemaParser(AvroSchemaParser());
 parser.registerSchemaParser(OpenAPISchemaParser());
 parser.registerSchemaParser(RamlDTSchemaParser());
+parser.registerSchemaParser(ProtoBuffSchemaParser());
 
 export interface ValidationFlagsOptions {
   logDiagnostics?: boolean;