diff --git a/.github/super-linter.env b/.github/super-linter.env
index c5b356f..be7918f 100644
--- a/.github/super-linter.env
+++ b/.github/super-linter.env
@@ -36,3 +36,6 @@ VALIDATE_TSX=false
 VALIDATE_TYPESCRIPT_ES=false
 VALIDATE_TYPESCRIPT_PRETTIER=false
 VALIDATE_TYPESCRIPT_STANDARD=false
+
+# Skip OPENAPI check  for this repo as it contains invalid OAS specs for testing purposes
+VALIDATE_OPENAPI=false
diff --git a/package.json b/package.json
index e9aef18..f53d3e9 100644
--- a/package.json
+++ b/package.json
@@ -27,7 +27,7 @@
     "update-lock-file": "update-lock-file @netcracker"
   },
   "dependencies": {
-    "@netcracker/qubership-apihub-api-unifier": "2.4.1",
+    "@netcracker/qubership-apihub-api-unifier": "dev",
     "@netcracker/qubership-apihub-json-crawl": "1.0.4",
     "fast-equals": "4.0.3"
   },
diff --git a/test/bugs.test.ts b/test/bugs.test.ts
index a6ce3cf..fe58b5c 100644
--- a/test/bugs.test.ts
+++ b/test/bugs.test.ts
@@ -45,6 +45,9 @@ import shouldNotMissRemoveDiffForEnumEntryInOneOfAfter from './helper/resources/
 import shouldReportSingleDiffWhenRequiredPropertyIsChangedForTheCombinerBefore from './helper/resources/should-report-single-diff-when-required-property-is-changed-for-the-combiner/before.json'
 import shouldReportSingleDiffWhenRequiredPropertyIsChangedForTheCombinerAfter from './helper/resources/should-report-single-diff-when-required-property-is-changed-for-the-combiner/after.json'
 
+import duplicateParametersBefore from './helper/resources/duplicate-parameters/before.json'
+import duplicateParametersAfter from './helper/resources/duplicate-parameters/after.json'
+
 import { diffsMatcher } from './helper/matchers'
 import { TEST_DIFF_FLAG, TEST_ORIGINS_FLAG } from './helper'
 import { JSON_SCHEMA_NODE_SYNTHETIC_TYPE_NOTHING } from '@netcracker/qubership-apihub-api-unifier'
@@ -115,7 +118,7 @@ describe('Real Data', () => {
     const after: any = infinityAfter
     const { diffs } = apiDiff(before, after, OPTIONS)
     const responseContentPath = ['paths', '/api/v1/dictionaries/dictionary/item', 'get', 'responses', '200', 'content']
-    expect(diffs).toEqual(diffsMatcher([      
+    expect(diffs).toEqual(diffsMatcher([
       expect.objectContaining({
         afterDeclarationPaths: [['components', 'schemas', 'DictionaryItem', 'x-entity']],
         afterValue: 'DictionaryItem',
@@ -232,7 +235,7 @@ describe('Real Data', () => {
     const before: any = wildcardContentSchemaMediaTypeCombinedWithSpecificMediaTypeBefore
     const after: any = wildcardContentSchemaMediaTypeCombinedWithSpecificMediaTypeAfter
     const { diffs } = apiDiff(before, after, OPTIONS)
-    
+
     expect(diffs).toEqual(diffsMatcher([
       expect.objectContaining({
         action: DiffAction.replace,
@@ -302,4 +305,18 @@ describe('Real Data', () => {
       }),
     ]))
   })
+
+
+  it('should not report diffs for duplicated parameters', () => {
+    const { diffs } = apiDiff(duplicateParametersBefore, duplicateParametersAfter, OPTIONS)
+
+    expect(diffs).toHaveLength(1)
+    expect(diffs).toEqual(diffsMatcher([
+      expect.objectContaining({
+        action: DiffAction.add,
+        afterDeclarationPaths: [['paths', '/api/v1/user-management/user-federations/{id}/mappers/{id}', 'get', 'description']],
+        type: annotation,
+      }),
+    ]))
+  })
 })
diff --git a/test/helper/resources/duplicate-parameters/after.json b/test/helper/resources/duplicate-parameters/after.json
new file mode 100644
index 0000000..8efd865
--- /dev/null
+++ b/test/helper/resources/duplicate-parameters/after.json
@@ -0,0 +1,37 @@
+{
+  "openapi": "3.1.1",
+  "info": {
+    "title": "User Management API",
+    "version": "1.0.0"
+  },
+  "paths": {
+    "/api/v1/user-management/user-federations/{id}/mappers/{id}": {
+      "get": {
+        "description": "Retrieve mapper details for a specific federation and mapper ID.",
+        "parameters": [
+          {
+            "name": "id",
+            "in": "path",
+            "required": true,
+            "schema": {
+              "type": "string"
+            }
+          },
+          {
+            "name": "id",
+            "in": "path",
+            "required": true,
+            "schema": {
+              "type": "string"
+            }
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "OK"
+          }
+        }
+      }
+    }
+  }
+}
diff --git a/test/helper/resources/duplicate-parameters/before.json b/test/helper/resources/duplicate-parameters/before.json
new file mode 100644
index 0000000..5fcc426
--- /dev/null
+++ b/test/helper/resources/duplicate-parameters/before.json
@@ -0,0 +1,36 @@
+{
+  "openapi": "3.1.1",
+  "info": {
+    "title": "User Management API",
+    "version": "1.0.0"
+  },
+  "paths": {
+    "/api/v1/user-management/user-federations/{id}/mappers/{id}": {
+      "get": {
+        "parameters": [
+          {
+            "name": "id",
+            "in": "path",
+            "required": true,
+            "schema": {
+              "type": "string"
+            }
+          },
+          {
+            "name": "id",
+            "in": "path",
+            "required": true,
+            "schema": {
+              "type": "string"
+            }
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "OK"
+          }
+        }
+      }
+    }
+  }
+}