diff --git a/Dockerfile b/Dockerfile
index 1c7a999..15cb6b8 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -11,6 +11,7 @@ RUN apk add --no-cache \
       libmagic \
       ffmpeg \
       bash \
+      ca-certificates \
  && mkdir /mautrixtelegram 
 
 WORKDIR /mautrixtelegram