diff --git a/Dockerfile b/Dockerfile
index dca547c6dc4..33137fca83d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -18,7 +18,6 @@ COPY Gemfile* package.json yarn.lock /opt/mastodon/
 # hadolint ignore=DL3008
 RUN apt-get update && \
     apt-get install -y --no-install-recommends build-essential \
-        ca-certificates \
         git \
         libicu-dev \
         libidn11-dev \