diff --git a/.github/workflows/test-docker-image.yml b/.github/workflows/test-docker-image.yml
index 6adc32f..6613bbf 100644
--- a/.github/workflows/test-docker-image.yml
+++ b/.github/workflows/test-docker-image.yml
@@ -3,8 +3,12 @@ name: Docker Image CI
 on:
   push:
     branches: [ master ]
+    paths:
+    - '**/**/Dockerfile'
   pull_request:
     branches: [ master ]
+    paths:
+    - '**/**/Dockerfile'
 
 jobs: