diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7d628c6..11a5634 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -9,6 +9,14 @@ on:
   schedule:
     - cron: "0 5 * * 1"
 
+permissions:
+  contents: read
+
+concurrency:
+  # yamllint disable-line rule:line-length
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   build:
     name: Build test configuration for esphome:${{ matrix.esphome-version }}