diff --git a/server/build/webpack.prod.conf.js b/server/build/webpack.prod.conf.js
index bd5d98b..d479d45 100644
--- a/server/build/webpack.prod.conf.js
+++ b/server/build/webpack.prod.conf.js
@@ -7,32 +7,11 @@ const fs = require('fs');
 var base = require('./webpack.base.conf');
 
 const TARGET_NODE_VERSION = process.versions.node;
-const PLATFORM = `${process.platform}-${process.arch}-node-${TARGET_NODE_VERSION.split('.')[0]}`;
-const DEASYNC_NODE_MODULES_PATH = path.resolve('node_modules', 'deasync', 'bin', PLATFORM);
-const DEASYNC_DIST_PATH = path.resolve('dist', 'bin', PLATFORM);
-
-console.log(`Target node version: ${TARGET_NODE_VERSION}`);
-console.log(`Platform: ${PLATFORM}`);
-
-if(!fs.existsSync(DEASYNC_NODE_MODULES_PATH)) {
-  throw new Error(`deasync doesn't support this platform: ${PLATFORM}`);
-}
 
 base.mode = 'production';
 base.output.filename = "server.js";
 base.optimization.minimize = true;
 
-base.externals = base.externals ? base.externals : [];
-base.externals.push(
-  function (context, request, callback) {
-    if(request.indexOf('bindings') === 0) {
-      callback(null, `() => require('./deasync.node')`)
-    } else {
-      callback();
-    }
-  }
-);
-
 const prodRules = [
   {
     test: /\.js$/,
@@ -57,18 +36,6 @@ const prodRules = [
   }
 ];
 
-let contextPathMapping = {};
-contextPathMapping[path.resolve(DEASYNC_DIST_PATH, 'deasync')] = './deasync.node';
-
-const prodPlugins = [
-  new webpack.ContextReplacementPlugin(
-    /deasync/,
-    DEASYNC_NODE_MODULES_PATH,
-    contextPathMapping
-  )
-];
-
 base.module.rules = [...base.module.rules, ...prodRules];
-base.plugins = [...base.plugins, ...prodPlugins];
 
 module.exports = base;
diff --git a/server/package.json b/server/package.json
index 532af79..b39f613 100644
--- a/server/package.json
+++ b/server/package.json
@@ -53,7 +53,7 @@
     "nodemon": "^1.17.5",
     "ts-jest": "^23.1.1",
     "ts-loader": "^4.4.1",
-    "typescript": "^2.8.3",
+    "typescript": "^3.9.5",
     "url": "^0.11.0",
     "webpack": "^4.12.0",
     "webpack-cli": "^3.0.8",
diff --git a/server/spec/setup_tests.ts b/server/spec/setup_tests.ts
index f3f4eaa..504c7d7 100644
--- a/server/spec/setup_tests.ts
+++ b/server/spec/setup_tests.ts
@@ -13,7 +13,5 @@ jest.mock('../src/config.ts', () => ({
   AlertTypes: jest.requireActual('../src/config').AlertTypes,
 }));
 
-jest.mock('deasync', () => ({ loopWhile: jest.fn() }));
-
 clearSegmentsDB();
 createTestDB();