diff --git a/Dockerfile.ubuntu b/Dockerfile.ubuntu
index 382541b..d3ef925 100644
--- a/Dockerfile.ubuntu
+++ b/Dockerfile.ubuntu
@@ -3,4 +3,7 @@ ARG BASE_TAG="24.04"
 
 FROM ${BASE_REPO}ubuntu:${BASE_TAG}
 
+RUN apt update
+RUN apt-get install -y --no-install-recommends ca-certificates
+
 COPY apt/ubuntu.sources /etc/apt/sources.list.d/ubuntu.sources