diff --git a/.npmrc b/.npmrc
new file mode 100644
index 0000000..4fd0219
--- /dev/null
+++ b/.npmrc
@@ -0,0 +1 @@
+engine-strict=true
\ No newline at end of file
diff --git a/README.md b/README.md
index c5862dc..f62196e 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,9 @@
 
 
 ## Install
-First you have to install NodeJS if you don't already have it from https://nodejs.org/. This app has been developed on Node version 7.9 and also tested on Node 8. In case you have older version you might need to also install a newer one. This is easy to do using the Node Version Manager from https://github.com/creationix/nvm. Then clone the repo, install the dependencies and start it:
+First you have to install NodeJS if you don't already have it from https://nodejs.org/. This app has been developed on Node version 7.9 and also tested on Node 8 and 9. There is a known conflict that currently prevents use of Node version 10 or later. If your system's version is outside that range you will want to install a supported version. This is easy to do using the Node Version Manager from https://github.com/creationix/nvm. (_Note the instruction on updating your shell's configuration file or you may find the Node version reverts on starting a new session_)
+
+Then clone the repo, install the dependencies and start it:
 
 ```sh
 git clone https://github.com/smart-on-fhir/bulk-data-server.git
diff --git a/package-lock.json b/package-lock.json
index 58a5cf1..ac63fe3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1803,13 +1803,6 @@
             }
           }
         },
-        "string_decoder": {
-          "version": "1.0.3",
-          "bundled": true,
-          "requires": {
-            "safe-buffer": "5.1.1"
-          }
-        },
         "string-width": {
           "version": "1.0.2",
           "bundled": true,
@@ -1819,6 +1812,13 @@
             "strip-ansi": "3.0.1"
           }
         },
+        "string_decoder": {
+          "version": "1.0.3",
+          "bundled": true,
+          "requires": {
+            "safe-buffer": "5.1.1"
+          }
+        },
         "stringstream": {
           "version": "0.0.5",
           "bundled": true
diff --git a/package.json b/package.json
index b5c4dd2..fcdd5a7 100644
--- a/package.json
+++ b/package.json
@@ -9,7 +9,7 @@
     "start": "node ."
   },
   "engines": {
-    "node": "9.0.0"
+    "node": "<10.0.0"
   },
   "repository": {
     "type": "git",