diff --git a/package.json b/package.json
index c819d9f..8c7068d 100644
--- a/package.json
+++ b/package.json
@@ -27,12 +27,12 @@
     "update-lock-file": "update-lock-file @netcracker"
   },
   "dependencies": {
-    "@netcracker/qubership-apihub-api-unifier": "2.3.0",
+    "@netcracker/qubership-apihub-api-unifier": "dev",
     "@netcracker/qubership-apihub-json-crawl": "1.0.4",
     "fast-equals": "4.0.3"
   },
   "devDependencies": {
-    "@netcracker/qubership-apihub-compatibility-suites": "2.2.0",
+    "@netcracker/qubership-apihub-compatibility-suites": "dev",
     "@netcracker/qubership-apihub-graphapi": "1.0.8",
     "@netcracker/qubership-apihub-npm-gitflow": "3.1.0",
     "@types/jest": "29.5.11",
diff --git a/src/openapi/openapi3.rules.ts b/src/openapi/openapi3.rules.ts
index 667c943..51652f5 100644
--- a/src/openapi/openapi3.rules.ts
+++ b/src/openapi/openapi3.rules.ts
@@ -388,6 +388,20 @@ export const openApi3Rules = (options: OpenApi3RulesOptions): CompareRules => {
     '/*': operationAnnotationRule,
   }
 
+  const pathItemObjectRules = (options: OpenApi3RulesOptions): CompareRules => ({
+    $: pathChangeClassifyRule,
+    mapping: options.mode === COMPARE_MODE_OPERATION ? singleOperationPathMappingResolver : pathMappingResolver,
+    '/description': { $: allAnnotation },
+    '/parameters': {
+      $: [nonBreaking, breaking, breaking],
+      mapping: paramMappingResolver(1),
+      ...parametersRules,
+    },
+    '/servers': serversRules,
+    '/summary': { $: allAnnotation },
+    '/*': operationRule,
+  })
+
   const componentsRule: CompareRules = {
     $: allNonBreaking,
     [START_NEW_COMPARE_SCOPE_RULE]: COMPARE_SCOPE_COMPONENTS,
@@ -412,6 +426,10 @@ export const openApi3Rules = (options: OpenApi3RulesOptions): CompareRules => {
         ...requestSchemaRules,
       }),
     },
+    '/pathItems': {
+      $: [nonBreaking, breaking, breaking],
+      '/*': pathItemObjectRules(options),
+    },
     '/securitySchemes': {
       $: [breaking, nonBreaking, breaking],
       '/*': {
@@ -438,19 +456,7 @@ export const openApi3Rules = (options: OpenApi3RulesOptions): CompareRules => {
     '/paths': {
       $: allUnclassified,
       mapping: options.mode === COMPARE_MODE_OPERATION ? singleOperationPathMappingResolver : pathMappingResolver,
-      '/*': {
-        $: pathChangeClassifyRule,
-        mapping: options.mode === COMPARE_MODE_OPERATION ? singleOperationPathMappingResolver : pathMappingResolver,
-        '/description': { $: allAnnotation },
-        '/parameters': {
-          $: [nonBreaking, breaking, breaking],
-          mapping: paramMappingResolver(1),
-          ...parametersRules,          
-        },
-        '/servers': serversRules,
-        '/summary': { $: allAnnotation },        
-        '/*': operationRule,
-      },
+      '/*': pathItemObjectRules(options),
     },
     '/components': componentsRule,
     '/security': {
diff --git a/test/compatibility-suites/openapi/general-operation-parameters.test.ts b/test/compatibility-suites/openapi/general-operation-parameters.test.ts
index 2714bb7..7c4c4df 100644
--- a/test/compatibility-suites/openapi/general-operation-parameters.test.ts
+++ b/test/compatibility-suites/openapi/general-operation-parameters.test.ts
@@ -767,3 +767,59 @@ describe('Openapi3 General Operation Parameters', () => {
     ]))
   })
 })
+
+const PATH_ITEM_PATH = [
+  'components',
+  'pathItems',
+  'UserOps',
+]
+
+describe('Openapi3.1 PathItems', () => {
+  test('Add method in path item', async () => {
+    const testId = 'add-method-in-path-item'
+    const result = await compareFiles(SUITE_ID, testId)
+    expect(result).toEqual(diffsMatcher([
+      expect.objectContaining({
+        action: DiffAction.add,
+        afterDeclarationPaths: [[...PATH_ITEM_PATH, 'post']],
+        type: nonBreaking,
+      }),
+    ]))
+  })
+
+  test('Remove unused method in path item', async () => {
+    const testId = 'remove-unused-method-in-path-item'
+    const result = await compareFiles(SUITE_ID, testId)
+    expect(result).toEqual([])
+  })
+
+  test('Add unused method in path item', async () => {
+    const testId = 'add-unused-method-in-path-item'
+    const result = await compareFiles(SUITE_ID, testId)
+    expect(result).toEqual([])
+  })
+
+  test('Remove method in path item', async () => {
+    const testId = 'remove-method-in-path-item'
+    const result = await compareFiles(SUITE_ID, testId)
+    expect(result).toEqual(diffsMatcher([
+      expect.objectContaining({
+        action: DiffAction.remove,
+        beforeDeclarationPaths: [[...PATH_ITEM_PATH, 'post']],
+        type: breaking,
+      }),
+    ]))
+  })
+
+  test('Replace inline path item to ref', async () => {
+    const testId = 'replace-inline-path-item-to-ref'
+    const result = await compareFiles(SUITE_ID, testId)
+    expect(result).toEqual([])
+  })
+
+  test('Replace ref path item to inline', async () => {
+    const testId = 'replace-ref-path-item-to-inline'
+    const result = await compareFiles(SUITE_ID, testId)
+    expect(result).toEqual([])
+  })
+})
diff --git a/test/pathItems.rules.test.ts b/test/pathItems.rules.test.ts
new file mode 100644
index 0000000..8e57a69
--- /dev/null
+++ b/test/pathItems.rules.test.ts
@@ -0,0 +1,85 @@
+import { apiDiff, ClassifierType, DiffAction } from '../src'
+import { diffsMatcher } from './helper/matchers'
+
+const COMPONENTS_RESPONSE_PATH = [
+  'components',
+  'pathItems',
+  'componentsPathItem',
+  'post',
+  'responses',
+  '200',
+]
+
+describe('Openapi3.1 Components PathItems Rules', () => {
+  test('reports changes to path items in components', async () => {
+    const before = {
+      'openapi': '3.1.0',
+      'paths': {
+        '/path1': {
+          'post': {
+            'responses': {
+              '200': {},
+            },
+          },
+        },
+      },
+      'components': {
+        'pathItems': {
+          'componentsPathItem': {
+            'post': {
+              'responses': {
+                '200': {
+                  'description': 'Pet successfully added',
+                },
+              },
+            },
+          },
+        },
+      },
+    }
+
+    const after = {
+      'openapi': '3.1.0',
+      'paths': {
+        '/path1': {
+          'post': {
+            'responses': {
+              '200': {},
+            },
+          },
+        },
+      },
+      'components': {
+        'pathItems': {
+          'componentsPathItem': {
+            'post': {
+              'responses': {
+                '200': {
+                  'description': 'new value',
+                },
+              },
+            },
+          },
+        },
+      },
+    }
+
+    const result = apiDiff(before, after)
+    expect(result.diffs).toEqual(diffsMatcher([
+      expect.objectContaining({
+        action: DiffAction.replace,
+        beforeValue: 'Pet successfully added',
+        afterValue: 'new value',
+        beforeDeclarationPaths: [[
+          ...COMPONENTS_RESPONSE_PATH,
+          'description',
+        ]],
+        afterDeclarationPaths: [[
+          ...COMPONENTS_RESPONSE_PATH,
+          'description',
+        ]],
+        type: ClassifierType.annotation,
+      }),
+    ]))
+  })
+})