Update main.yml

Author: map220v

.github/workflows/main.yml

@@ -26,7 +26,7 @@ jobs:
       - uses: actions/checkout@v3
 
       - name: Install Dependencies
-        run: sudo apt install build-essential gcc-aarch64-linux-gnu bc flex bison 7zip kmod bash cpio binutils tar git wget dpkg libssl-dev
+        run: sudo apt update && sudo apt install build-essential gcc-aarch64-linux-gnu bc flex bison 7zip kmod bash cpio binutils tar git wget dpkg libssl-dev
 
       - name: Build kernel and rootfs.img
         run: sudo sh nabu-rootfsKernel_build.sh