diff --git a/.github/workflows/beta-version.yml b/.github/workflows/beta-version.yml
index 0fb6da3..db363a9 100644
--- a/.github/workflows/beta-version.yml
+++ b/.github/workflows/beta-version.yml
@@ -1,21 +1,26 @@
 name: Build beta version
 
 on:
-  push:
-    branches:
-      - master
+  pull_request:
+    types:
+      - closed
 
 jobs:
   create-beta-version:
     runs-on: ubuntu-latest
+    if: github.event.pull_request.merged == true && github.event.pull_request.base.ref == 'master'
 
     strategy:
       matrix:
-        node-version: [18.x, 20.x]
+        node-version: [20.x]
 
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+          ref: master
+          token: ${{ secrets.REPO_TOKEN }}
 
       - name: Use Node.js ${{ matrix.node-version }}
         uses: actions/setup-node@v3
diff --git a/.github/workflows/npm-publish.yml b/.github/workflows/npm-publish.yml
index 3db398b..ffb9d72 100644
--- a/.github/workflows/npm-publish.yml
+++ b/.github/workflows/npm-publish.yml
@@ -11,7 +11,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [18.x, 20.x]
+        node-version: [20.x]
 
     steps:
       - name: Checkout repository