diff --git a/Dockerfile b/Dockerfile
index 319ae58..ff6911b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,6 +2,6 @@ FROM nextcloud:28.0.2
 LABEL maintainer="Jiří Štefka <jiri@stefka.eu>"
 
 # RUN apt update && apt upgrade -y --no-install-recommends && apt install ffmpeg aria2 youtube-dl libmagickcore-dev -y --no-install-recommends
-RUN apt update && apt upgrade -y --no-install-recommends && apt install ffmpeg aria2 libmagickcore-dev -y --no-install-recommends
+RUN apt update && apt upgrade -y --no-install-recommends && apt install gnupg2 ffmpeg aria2 libmagickcore-dev -y --no-install-recommends
 RUN docker-php-ext-install bz2
 RUN apt clean && rm -rf /var/lib/apt/lists/*