diff --git a/Containerfile b/Containerfile
index 7278d36..84fa0b1 100644
--- a/Containerfile
+++ b/Containerfile
@@ -13,13 +13,16 @@ COPY extra-packages /
 # Install custom CA cert
 COPY aussielunix_Root_CA_168848365996868199089383065266162030969.crt /usr/local/share/ca-certificates/
 
+# update apt and install ca-certificates and dist-upgrade
+RUN apt-get update -yq && \
+    apt-get install ca-certificates && \
+    apt-get -yq dist-upgrade
+
 # Install Hashicorp apt signing key and apt repo
 COPY hashicorp-apt-keyring.gpg /etc/apt/keyrings/hashicorp-apt-keyring.gpg
 COPY hashicorp-apt-repo.list /etc/apt/sources.list.d/hashicorp.list
 
-RUN apt-get install ca-certificates && \
-    apt-get update -yq && \
-    apt-get -yq dist-upgrade
+RUN apt-get update -yq && \
 
 RUN DEBIAN_FRONTEND=noninteractive apt-get -yq install \
       libnss-myhostname ubuntu-minimal ubuntu-standard \