diff --git a/.gitea/workflows/ci.yaml b/.gitea/workflows/ci.yaml
index 355fe31..03c8ae1 100644
--- a/.gitea/workflows/ci.yaml
+++ b/.gitea/workflows/ci.yaml
@@ -31,8 +31,8 @@ jobs:
           echo "deb https://mirror.nju.edu.cn/ubuntu/ focal-updates main restricted universe multiverse" >> /etc/apt/sources.list
           echo "deb https://mirror.nju.edu.cn/ubuntu/ focal-backports main restricted universe multiverse" >> /etc/apt/sources.list
           echo "deb https://mirror.nju.edu.cn/ubuntu/ focal-security main restricted universe multiverse" >> /etc/apt/sources.list
-          apt update --allow-unauthenticated
-          apt install -y gnupg --allow-unauthenticated
+          apt-get update --allow-unauthenticated
+          apt-get install -y gnupg --allow-unauthenticated
 
       - name: Add missing GPG keys for NJU mirror
         run: |