diff --git a/.github/workflows/mix-code-scan.yml b/.github/workflows/mix-code-scan.yml
index b4b1498..f27ff58 100644
--- a/.github/workflows/mix-code-scan.yml
+++ b/.github/workflows/mix-code-scan.yml
@@ -4,7 +4,7 @@
 name: Code Scan
 
 on:
-  pull_request:
+  pull_request_target:
     branches: [main]
     types: [opened, reopened, ready_for_review, synchronize] # added `ready_for_review` since draft is skipped
     paths-ignore:
diff --git a/.github/workflows/pr-integration-test.yml b/.github/workflows/pr-integration-test.yml
index c501014..45aa7d7 100644
--- a/.github/workflows/pr-integration-test.yml
+++ b/.github/workflows/pr-integration-test.yml
@@ -4,14 +4,14 @@
 name: Integration-test
 
 on:
-  pull_request:
+  pull_request_target:
     branches: [main]
     types: [opened, reopened, ready_for_review, synchronize]
-    #paths:
-    #  - langchain_opea/**
-    #  - tests/unit_tests/**
-    #  - .github/workflows/pr-integration-test.yml
-    #  - "!**.md"
+    paths:
+      - langchain_opea/**
+      - tests/unit_tests/**
+      - .github/workflows/pr-integration-test.yml
+      - "!**.md"
 
 # If there is a new commit, the previous jobs will be canceled
 concurrency:
diff --git a/.github/workflows/pr-link-path-scan.yaml b/.github/workflows/pr-link-path-scan.yaml
index b7071a8..7506ec3 100644
--- a/.github/workflows/pr-link-path-scan.yaml
+++ b/.github/workflows/pr-link-path-scan.yaml
@@ -4,7 +4,7 @@
 name: Check hyperlinks and relative path validity
 
 on:
-  pull_request:
+  pull_request_target:
     branches: [main]
     types: [opened, reopened, ready_for_review, synchronize]
 
diff --git a/.github/workflows/pr-unit-test.yml b/.github/workflows/pr-unit-test.yml
index deac07c..9fca46e 100644
--- a/.github/workflows/pr-unit-test.yml
+++ b/.github/workflows/pr-unit-test.yml
@@ -4,14 +4,14 @@
 name: Unit-test
 
 on:
-  pull_request:
+  pull_request_target:
     branches: [main]
     types: [opened, reopened, ready_for_review, synchronize]
-    #paths:
-    #  - langchain_opea/**
-    #  - tests/unit_tests/**\
-    #  - .github/workflows/pr-unit-test.yml
-    #  - "!**.md"
+    paths:
+      - langchain_opea/**
+      - tests/unit_tests/**\
+      - .github/workflows/pr-unit-test.yml
+      - "!**.md"
 
 # If there is a new commit, the previous jobs will be canceled
 concurrency:
diff --git a/tests/test_integration_langchain_opea.sh b/tests/test_integration_langchain_opea.sh
index a104590..06e600e 100755
--- a/tests/test_integration_langchain_opea.sh
+++ b/tests/test_integration_langchain_opea.sh
@@ -1,5 +1,4 @@
-#!/bin/bash
-# Copyright (C) 2025 Intel Corporation
+# Copyright (C) 2025 Intel Corporation
 # SPDX-License-Identifier: Apache-2.0
 
 set -xe