diff --git a/.github/workflows/spell-check-differential.yaml b/.github/workflows/spell-check-differential.yaml
index 484c3690..1b5c52cb 100644
--- a/.github/workflows/spell-check-differential.yaml
+++ b/.github/workflows/spell-check-differential.yaml
@@ -13,4 +13,4 @@ jobs:
       - name: Run spell-check
         uses: autowarefoundation/autoware-github-actions/spell-check@tier4/proposal
         with:
-          cspell-json-url: https://raw.githubusercontent.com/tier4/autoware-spell-check-dict/main/cspell/.cspell.json
+          cspell-json-url: https://raw.githubusercontent.com/tier4/autoware-spell-check-dict/main/.cspell.json