diff --git a/.github/scripts/stub_iap.sh b/.github/scripts/stub_iap.sh
new file mode 100644
index 0000000..6afdf28
--- /dev/null
+++ b/.github/scripts/stub_iap.sh
@@ -0,0 +1 @@
+perl -0777 -i -pe 's/(  m3_lightmeter_iap:\n)(    git:\n      url: "https:\/\/github.com\/vodemn\/m3_lightmeter_iap"\n      ref: main)/$1    path: iap/sg' pubspec.yaml
\ No newline at end of file
diff --git a/.github/workflows/pr_check.yml b/.github/workflows/pr_check.yml
index e6f0294..0f26872 100644
--- a/.github/workflows/pr_check.yml
+++ b/.github/workflows/pr_check.yml
@@ -29,8 +29,8 @@ jobs:
 
       - name: Override iap package with stub
         if: env.STUB_IAP
-        run: |
-          echo "\ndependency_overrides:\n  m3_lightmeter_iap:\n    path: iap" >> pubspec.yaml
+        run: ./.github/scripts/stub_iap.sh
+        shell: bash
 
       - uses: actions/checkout@v3
         with: