diff --git a/src/config/supportedRuntimes.js b/src/config/supportedRuntimes.js
index 882202537..f11d86fc9 100644
--- a/src/config/supportedRuntimes.js
+++ b/src/config/supportedRuntimes.js
@@ -25,6 +25,7 @@ export const supportedNodejs = new Set([
   // supported
   'nodejs10.x',
   'nodejs12.x',
+  'nodejs14.x',
 ])
 
 // PROVIDED
diff --git a/src/lambda/handler-runner/HandlerRunner.js b/src/lambda/handler-runner/HandlerRunner.js
index 53c8e8f17..12f35c3b8 100644
--- a/src/lambda/handler-runner/HandlerRunner.js
+++ b/src/lambda/handler-runner/HandlerRunner.js
@@ -39,6 +39,14 @@ export default class HandlerRunner {
     debugLog(`Loading handler... (${handlerPath})`)
 
     if (useDocker) {
+      // https://github.com/lambci/docker-lambda/issues/329
+      if (runtime === 'nodejs14.x') {
+        logWarning(
+          '"nodejs14.x" runtime is not supported with docker. See https://github.com/lambci/docker-lambda/issues/329',
+        )
+        throw new Error('Unsupported runtime')
+      }
+
       const dockerOptions = {
         host: this.#options.dockerHost,
         hostServicePath: this.#options.dockerHostServicePath,