diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index ec6286b..7463d16 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -12,7 +12,7 @@ jobs:
       with:
         submodules: true
     - name: Install deps
-      run: sudo apt install build-essential bison flex libncurses5-dev gcc-arm-linux-gnueabi qemu-user-static
+      run: sudo apt update && sudo apt install build-essential bison flex libncurses5-dev gcc-arm-linux-gnueabi qemu-user-static
 
     - name: Build nkbin-maker
       run: make nkbin-maker