diff --git a/.github/workflows/update_copyright.yaml b/.github/workflows/update_copyright.yaml
new file mode 100644
index 0000000..3b6b73c
--- /dev/null
+++ b/.github/workflows/update_copyright.yaml
@@ -0,0 +1,46 @@
+# This is a basic workflow to help you get started with Actions
+
+name: "Change copyright"
+
+# Controls when the action will run. Triggers the workflow on push
+# events but only for the master branch
+on:
+  workflow_dispatch:
+    inputs:
+      CurrentYear:
+        description: 'The current year'
+        required: true
+        type: string
+      NewYear:
+        description: 'The new year'
+        required: true
+        type: string
+        
+# This workflow contains one job called "build_documentation"
+jobs:
+  update_version:
+    # The type of runner that the job will run on
+    runs-on: ubuntu-latest
+
+    # Steps represent a sequence of tasks that will be executed as part of the job
+    steps:     
+      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+      - uses: actions/checkout@v6
+        with:
+          fetch-depth: '1'
+
+      - run: find ./src -type f -exec sed -i 's/${{ inputs.CurrentYear }}/${{ inputs.NewYear }}/g' {} +
+      - run: find ./tests -type f -exec sed -i 's/${{ inputs.CurrentYear }}/${{ inputs.NewYear }}/g' {} +
+      
+      - name: Request a PR to commit changes
+        uses: peter-evans/create-pull-request@v8
+        with:
+          branch-suffix: short-commit-hash
+          add-paths: ./*.*
+          commit-message: Update copyright from ${{ inputs.CurrentYear }} to ${{ inputs.NewYear }}
+          title: Update copyright from ${{ inputs.CurrentYear }} to ${{ inputs.NewYear }}
+          body: |
+            Automated changes by GitHub action fix #128
+          reviewers: masesdevelopers
+          assignees: masesdevelopers
+          labels: enhancement, Docker, java, PLCOnNet, PLCOnNet CLI, PLCOnNet PowerShell, PLCOnNet Template, .NET 
\ No newline at end of file
diff --git a/tests/net/Common/Initializer.cs b/tests/net/Common/Initializer.cs
index cae1eba..82508d0 100644
--- a/tests/net/Common/Initializer.cs
+++ b/tests/net/Common/Initializer.cs
@@ -1,5 +1,5 @@
 /*
-*  Copyright 2025 MASES s.r.l.
+*  Copyright (c) 2025-2026 MASES s.r.l.
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
diff --git a/tests/net/PLCOnNetTest/Program.cs b/tests/net/PLCOnNetTest/Program.cs
index fd1ba43..e1fed09 100644
--- a/tests/net/PLCOnNetTest/Program.cs
+++ b/tests/net/PLCOnNetTest/Program.cs
@@ -1,5 +1,5 @@
 /*
-*  Copyright 2025 MASES s.r.l.
+*  Copyright (c) 2025-2026 MASES s.r.l.
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.