diff --git a/functions b/functions
index 0b8c8b4..c4e7ba5 100755
--- a/functions
+++ b/functions
@@ -75,7 +75,7 @@ service_link() {
   local SERVICE_URL=$(service_url "$SERVICE")
   local SERVICE_NAME=$(get_service_name "$SERVICE")
   local SERVICE_ROOT="$PLUGIN_DATA_ROOT/$SERVICE"
-  local EXISTING_CONFIG=$(dokku config "$APP")
+  local EXISTING_CONFIG=$(config_all "$APP")
   local LINK=$(echo "$EXISTING_CONFIG" | grep "$SERVICE_URL" | cut -d: -f1) || true
   local DEFAULT_ALIAS=$(echo "$EXISTING_CONFIG" | grep "${PLUGIN_DEFAULT_ALIAS}_URL") || true
   local SERVICE_ALIAS=$(service_alias "$SERVICE")
@@ -92,7 +92,7 @@ service_link() {
     ALIAS=$(service_alternative_alias "$EXISTING_CONFIG")
   fi
   dokku docker-options:add "$APP" build,deploy,run "--link $SERVICE_NAME:$SERVICE_ALIAS"
-  dokku config:set "$APP" "${ALIAS}_URL=$SERVICE_URL"
+  config_set "$APP" "${ALIAS}_URL=$SERVICE_URL"
 }
 
 service_alternative_alias() {
@@ -287,7 +287,7 @@ service_unlink() {
   update_plugin_scheme_for_app "$APP"
   local SERVICE_URL=$(service_url "$SERVICE")
   local SERVICE_NAME=$(get_service_name "$SERVICE")
-  local EXISTING_CONFIG=$(dokku config "$APP")
+  local EXISTING_CONFIG=$(config_all "$APP")
   local SERVICE_ALIAS=$(service_alias "$SERVICE")
   local LINK=($(echo "$EXISTING_CONFIG" | grep "$SERVICE_URL" | cut -d: -f1)) || true
 
@@ -295,7 +295,7 @@ service_unlink() {
   remove_from_links_file "$SERVICE" "$APP"
 
   dokku docker-options:remove "$APP" build,deploy,run "--link $SERVICE_NAME:$SERVICE_ALIAS"
-  dokku config:unset "$APP" "${LINK[*]}"
+  config_unset "$APP" "${LINK[*]}"
 }
 
 service_url() {
@@ -339,7 +339,7 @@ promote() {
   local SERVICE="$1"
   local APP="$2"
   local PLUGIN_DEFAULT_CONFIG_VAR="${PLUGIN_DEFAULT_ALIAS}_URL"
-  local EXISTING_CONFIG=$(dokku config "$APP")
+  local EXISTING_CONFIG=$(config_all "$APP")
   update_plugin_scheme_for_app "$APP"
   local SERVICE_URL=$(service_url "$SERVICE")
   local CONFIG_VARS=($(echo "$EXISTING_CONFIG" | grep "$SERVICE_URL" | cut -d: -f1)) || true
@@ -358,7 +358,9 @@ promote() {
   fi
   local PROMOTE_URL=$(get_url_from_config "$EXISTING_CONFIG" "${CONFIG_VARS[0]}")
   NEW_CONFIG_VARS+="$PLUGIN_DEFAULT_CONFIG_VAR=$PROMOTE_URL"
-  dokku config:set "$APP" $NEW_CONFIG_VARS
+
+  # shellcheck disable=SC2086
+  config_set "$APP" $NEW_CONFIG_VARS
 }
 
 remove_from_links_file() {