diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c69c38973..04c23d0d8 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -389,7 +389,7 @@ jobs:
     steps:
     - uses: actions/checkout@v2 # https://github.com/actions/checkout
     - name: unicode lint
-      run: ./tests/unicode_lint.sh
+      run: sh ./tests/unicode_lint.sh
 
 
 ###############################################################