diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index d6ba9abc6..2541d2ee4 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -14,7 +14,7 @@ jobs:
         uses: actions/checkout@v2
 
       - name: install dependencies
-        run: sudo apt install meson libsdl2-dev libpcap-dev libgtk-3-dev
+        run: sudo apt update && sudo apt install meson libsdl2-dev libpcap-dev libgtk-3-dev
 
       - name: meson
         run: |