diff --git a/.github/workflows/ubuntu.yml b/.github/workflows/ubuntu.yml
index bf0f30cd..9545d2e7 100644
--- a/.github/workflows/ubuntu.yml
+++ b/.github/workflows/ubuntu.yml
@@ -14,7 +14,9 @@ jobs:
     steps:
     - uses: actions/checkout@v2
     - name: install dependencies
-      run: sudo apt-get install -yq build-essential clang clang-tools git autotools-dev autoconf libtool gettext gawk gperf antlr3 libantlr3c-dev libconfuse-dev libunistring-dev libsqlite3-dev libavcodec-dev libavformat-dev libavfilter-dev libswscale-dev libavutil-dev libasound2-dev libmxml-dev libgcrypt20-dev libavahi-client-dev zlib1g-dev libevent-dev libplist-dev libsodium-dev libcurl4-openssl-dev libjson-c-dev libprotobuf-c-dev libpulse-dev libwebsockets-dev libgnutls28-dev
+      run: |
+        sudo apt-get update
+        sudo apt-get install -yq build-essential clang clang-tools git autotools-dev autoconf libtool gettext gawk gperf antlr3 libantlr3c-dev libconfuse-dev libunistring-dev libsqlite3-dev libavcodec-dev libavformat-dev libavfilter-dev libswscale-dev libavutil-dev libasound2-dev libmxml-dev libgcrypt20-dev libavahi-client-dev zlib1g-dev libevent-dev libplist-dev libsodium-dev libcurl4-openssl-dev libjson-c-dev libprotobuf-c-dev libpulse-dev libwebsockets-dev libgnutls28-dev
     - name: configure
       run: |
         autoreconf -vi