Github Action trigger with path and on working directory

Question

I have the following github action :

on:
  pull_request:
    paths:
      - 'path1/**'
      - 'path2/**'
  jobs:
    example:
       name: "example"
       runs-on: ubuntu-latest

    defaults:
     run:
       working-directory: ./path/to/my/working_directory

I am trying to trigger the flow only when a file is pushed on the following directories

• 'path1/**'
• 'path2/**'

but it seems that the flow is triggered every time even if i push something in other directories (ex. path3/**).

Could it be because of the working-directory because path1 and path2 are in the root directory.

Any ideas will be appreciated it.