diff --git a/deploy.sh b/deploy.sh
index 8e8303d..f5fe22d 100755
--- a/deploy.sh
+++ b/deploy.sh
@@ -7,11 +7,11 @@ TAG="$1"
 
 if [[ -z "$TAG" ]]; then
   echo
-  echo "Error: please provide a docker image tag as first argument, e.g.:"
+  echo "Error: please provide a version as docker image tag as first argument, e.g.:"
   echo "./deploy.sh 1.0.0"
   echo
   echo "You can check the currently deployed tag with"
-  echo "docker ps -a"
+  echo 'docker ps --format "{{.Names}}: {{.Image}}"'
   echo
   exit 1
 fi
@@ -19,6 +19,10 @@ fi
 # workaround for SSL: CERTIFICATE_VERIFY_FAILED error with docker-compose
 if [ -z "$CURL_CA_BUNDLE" ]; then
   if [ ! -f ~/Downloads/cacert-2021-10-26.pem ]; then
+    echo
+    echo "Couldn't find required CURL_CA_BUNDLE env variable..."
+    echo "Downloading https://curl.se/ca/cacert-2021-10-26.pem to ~/Downloads/cacert-2021-10-26.pem"
+    echo
     curl https://curl.se/ca/cacert-2021-10-26.pem -o ~/Downloads/cacert-2021-10-26.pem
   fi
   export CURL_CA_BUNDLE=~/Downloads/cacert-2021-10-26.pem