diff --git a/.github/workflows/test-release.yml b/.github/workflows/test-release.yml
index b8d5fa1..58afcc8 100644
--- a/.github/workflows/test-release.yml
+++ b/.github/workflows/test-release.yml
@@ -18,7 +18,9 @@ jobs:
           ref: ${{ github.event.pull_request.head.sha || github.sha }}
 
       - name: Install build deps
-        run: sudo apt-get install -y devscripts debhelper build-essential
+        run: |
+          sudo apt-get update -qq
+          sudo apt-get install -y devscripts debhelper build-essential
 
       - name: Compute build version
         id: version
diff --git a/.github/workflows/weekly-patch-test.yml b/.github/workflows/weekly-patch-test.yml
index c43bf26..b473e23 100644
--- a/.github/workflows/weekly-patch-test.yml
+++ b/.github/workflows/weekly-patch-test.yml
@@ -47,7 +47,9 @@ jobs:
 
       # ── Build (mirrors test-release.yml) ───────────────────────────────────
       - name: Install build deps
-        run: sudo apt-get install -y devscripts debhelper build-essential
+        run: |
+          sudo apt-get update -qq
+          sudo apt-get install -y devscripts debhelper build-essential
 
       - name: Inject version into Config.pm
         run: |