diff --git a/index.js b/index.js
index c72fab7..30bf9a8 100644
--- a/index.js
+++ b/index.js
@@ -6,6 +6,7 @@ const ms = require('ms')
 const assert = require('webassert').default
 const fsp = require('fs').promises
 const minimatch = require('minimatch')
+const { stackWithCauses } = require('pony-cause')
 
 let cleanup
 
@@ -41,7 +42,7 @@ async function doDeploy () {
 }
 
 doDeploy().catch(err => {
-  console.error(err)
+  console.error(stackWithCauses(err))
   if (err.stats) {
     console.log('Files to upload: ')
     console.dir(err.stats.filesToUpload, { colors: true, depth: 999 })
diff --git a/package.json b/package.json
index a46dec1..223758a 100644
--- a/package.json
+++ b/package.json
@@ -8,9 +8,10 @@
   },
   "dependencies": {
     "@actions/core": "1.10.0",
-    "async-neocities": "2.1.3",
+    "async-neocities": "2.1.4",
     "minimatch": "5.1.0",
     "ms": "2.1.3",
+    "pony-cause": "^2.1.4",
     "webassert": "3.0.2"
   },
   "devDependencies": {