diff --git a/images/etherpad/Dockerfile b/images/etherpad/Dockerfile
index d8c96d7..cbdc5b7 100644
--- a/images/etherpad/Dockerfile
+++ b/images/etherpad/Dockerfile
@@ -3,7 +3,7 @@ ARG REPO_LOCATION
 
 FROM ${REPO_LOCATION}minideb-node AS builder 
 
-RUN install_packages git
+RUN install_packages git ca-certificates
 
 RUN mkdir -p /srv && git clone --branch master https://github.com/ether/etherpad-lite.git /srv/etherpad