diff --git a/index.js b/index.js
index a572181..f65aa24 100644
--- a/index.js
+++ b/index.js
@@ -1,4 +1,4 @@
-const csvtojson = require('csvtojson');
+const csv = require('fast-csv');
 const fs = require('fs');
 const request = require('axios');
 
@@ -8,7 +8,15 @@ async function appendPEMFromUrl(url, individualFiles=false) {
     console.log(`Downloading from URL ${url}`);
     const response = await request.get(url, { responseType: 'blob'});
     console.log('Parsing csv file');
-    const jsonData = await csvtojson().fromString(response.data);
+    
+    const jsonData = [];
+    await new Promise((resolve, reject) => {
+        csv.parseString(response.data, { headers: true })
+            .on('data', (data) => jsonData.push(data))
+            .on('end', resolve)
+            .on('error', reject);
+    });
+    
     const output = []
     let i=0;
     for (const entry of jsonData) {
diff --git a/package.json b/package.json
index ab41706..ca0c8d2 100644
--- a/package.json
+++ b/package.json
@@ -34,6 +34,6 @@
   "dependencies": {
     "axios": "^1.6.5",
     "cross-env": "^7.0.3",
-    "csvtojson": "^2.0.10"
+    "fast-csv": "^4.3.6"
   }
 }