diff --git a/Dockerfile b/Dockerfile
index 6db21c26f..e715c0931 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -121,7 +121,7 @@ WORKDIR /
 # We cannot cache this layer otherwise we'll end up with a bigger image
 RUN apt-get update && \
     # Required for runtime
-    apt-get install -y --no-install-recommends libpq5 openssl libxmlsec1-openssl libmaxminddb0 && \
+    apt-get install -y --no-install-recommends libpq5 openssl libxmlsec1-openssl libmaxminddb0 ca-certificates && \
     # Required for bootstrap & healtcheck
     apt-get install -y --no-install-recommends runit && \
     apt-get clean && \