diff --git a/lib/plugins/aws/invoke-local/index.js b/lib/plugins/aws/invoke-local/index.js
index 3afd8a62f..d7ad66116 100644
--- a/lib/plugins/aws/invoke-local/index.js
+++ b/lib/plugins/aws/invoke-local/index.js
@@ -605,28 +605,25 @@ class AwsInvokeLocal {
 
     const wrapperPath = await this.resolveRuntimeWrapperPath('invoke.py');
 
-    return new Promise((resolve, reject) => {
-      const python = spawn(runtime.split('.')[0], ['-u', wrapperPath, handlerPath, handlerName], {
-        env: process.env,
-      });
+    return new Promise((resolve) => {
+      const python = spawnExt(
+        runtime.split('.')[0],
+        ['-u', wrapperPath, handlerPath, handlerName],
+        {
+          env: process.env,
+        }
+      );
       python.stdout.on('data', (buf) => {
         writeText(buf.toString());
       });
       python.stderr.on('data', (buf) => {
         writeText(buf.toString());
       });
-      python.on('close', () => resolve());
-      let isRejected = false;
-      python.on('error', (error) => {
-        isRejected = true;
-        reject(error);
-      });
 
-      process.nextTick(() => {
-        if (isRejected) return; // Runtime not available
-        python.stdin.write(input);
-        python.stdin.end();
-      });
+      python.child.stdin.write(input);
+      python.child.stdin.end();
+
+      resolve(python);
     });
   }