diff --git a/.drone.yml b/.drone.yml
index 1683534..1b30d5f 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -18,7 +18,7 @@ steps:
     image: debian
     commands:
       - apt-get update
-      - apt-get install --no-install-recommends calibre
+      - apt-get install -y --no-install-recommends calibre
       - ebook-polish -fpuiU "output/L'auberge Vagabonde - Volume 1.epub" "output/L'auberge Vagabonde - Volume 1.epub"
       - ebook-polish -fpuiU "output/L'auberge Vagabonde - Volume 2.epub" "output/L'auberge Vagabonde - Volume 2.epub"
       - ebook-polish -fpuiU "output/The Wandering Inn - Volume 3.epub" "output/The Wandering Inn - Volume 3.epub"