diff --git a/install/package.json b/install/package.json
index 519fd97a77..0b552cc350 100644
--- a/install/package.json
+++ b/install/package.json
@@ -117,8 +117,8 @@
         "passport": "0.7.0",
         "passport-http-bearer": "1.0.1",
         "passport-local": "1.0.0",
-        "pg": "8.14.1",
-        "pg-cursor": "2.13.1",
+        "pg": "8.15.0",
+        "pg-cursor": "2.14.0",
         "postcss": "8.5.3",
         "postcss-clean": "1.2.0",
         "progress-webpack-plugin": "1.0.16",
diff --git a/src/database/postgres.js b/src/database/postgres.js
index 84a456ca86..a625b5e498 100644
--- a/src/database/postgres.js
+++ b/src/database/postgres.js
@@ -1,5 +1,7 @@
 'use strict';
 
+const fs = require('fs');
+const path = require('path');
 const winston = require('winston');
 const nconf = require('nconf');
 const session = require('express-session');
@@ -360,7 +362,7 @@ postgresModule.createIndices = async function () {
 };
 
 postgresModule.checkCompatibility = function (callback) {
-	const postgresPkg = require('pg/package.json');
+	const postgresPkg = JSON.parse(fs.readFileSync(path.join(__dirname, '../../node_modules/pg/package.json'), 'utf8'));
 	postgresModule.checkCompatibilityVersion(postgresPkg.version, callback);
 };