diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 60c8c6e..6447611 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -20,9 +20,9 @@ jobs:
     - uses: actions/checkout@v2
     - name: Add encodings
       run: |
-        sudo apt-get update
-        sudo apt-get install -y locales
-        sudo locale-gen zh_CN.GB2312
+        apt-get update
+        apt-get install -y locales
+        locale-gen zh_CN.GB2312
     - name: Install dependencies
       run: shards install --ignore-crystal-version --skip-postinstall --skip-executables
     - name: Format