diff --git a/helpers.js b/helpers.js
index 529a280..e87e398 100644
--- a/helpers.js
+++ b/helpers.js
@@ -1,9 +1,10 @@
-const config = require("./config.json");
 const fetch = require("node-fetch");
-const fs = require("fs").promises;
+const fs = require("fs");
 const retry = require("promise-fn-retry");
 const util = require("util");
 
+const config = JSON.parse(fs.readFileSync("config.json", { encoding: "utf8" }));
+
 /**
  * Retry a bugzilla query.
  * @param {String} query The specified bugzilla query
@@ -241,8 +242,12 @@ async function recordCurrentDoc(currentDocId) {
   config.startingSpreadsheetId = currentDocId;
 
   Promise.all([
-    fs.writeFile("config.json", JSON.stringify(config, null, 2), "utf8"),
-    fs.writeFile(
+    fs.promises.writeFile(
+      "config.json",
+      JSON.stringify(config, null, 2),
+      "utf8"
+    ),
+    fs.promises.writeFile(
       `${config.currentDocPath}/currentDoc.json`,
       JSON.stringify({ currentDoc: currentDocId }),
       "utf8"
diff --git a/index.js b/index.js
index e4321be..aba208a 100644
--- a/index.js
+++ b/index.js
@@ -1,5 +1,6 @@
 const { google } = require("googleapis");
 const bugs = require("./bugs");
+const fs = require("fs");
 const helpers = require("./helpers");
 const spreadsheet = require("./spreadsheet");
 const tranco = require("./tranco");
@@ -7,7 +8,9 @@ const tranco = require("./tranco");
 const argv = process.argv.slice(2);
 
 const main = async () => {
-  const config = require("./config.json");
+  const config = JSON.parse(
+    await fs.promises.readFile("config.json", { encoding: "utf8" })
+  );
   const LIST_SIZE = config.listSize || 500;
   const LIST_DIR = config.listDir || "data/";
   const bugzillaKey = config.bugzillaKey || "";