diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a9b8966..78460c7 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -54,7 +54,9 @@ jobs:
         python-version: ${{ matrix.python-version }}
 
     - name: Install system dependencies
-      run: sudo apt install -y pkg-config python3-dev libgirepository1.0-dev gir1.2-gtk-3.0
+      run: |
+        sudo apt update -y
+        sudo apt install -y pkg-config python3-dev libgirepository1.0-dev gir1.2-gtk-3.0
 
     - name: Install Tox
       run: |