diff --git a/.github/workflows/docker-image-ci.yml b/.github/workflows/docker-image-ci.yml
index 192834f..f7b335b 100644
--- a/.github/workflows/docker-image-ci.yml
+++ b/.github/workflows/docker-image-ci.yml
@@ -3,6 +3,8 @@ name: docker image ci
 on:
   pull_request:
     types: [opened, synchronize]
+    paths-ignore:
+    - '**.md'
   push:
     paths-ignore:
     - '**.md'