diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 4dc7cc1..58fe9a1 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -7,9 +7,9 @@ on:
       - 'lib/**.dart'
       - 'test/**.dart'
       - 'android/**'
+      - 'tool/**'
       - 'pubspec.yaml'
       - 'pubspec.lock'
-      - 'images/**'
   pull_request:
     branches: [ master ]
   workflow_dispatch: