diff --git a/packages/backend-common/package.json b/packages/backend-common/package.json
index d356d67fab..2378a24383 100644
--- a/packages/backend-common/package.json
+++ b/packages/backend-common/package.json
@@ -78,6 +78,7 @@
     "morgan": "^1.10.0",
     "node-fetch": "^2.6.7",
     "node-forge": "^1.3.1",
+    "pg": "^8.9.0",
     "raw-body": "^2.4.1",
     "request": "^2.88.2",
     "selfsigned": "^2.0.0",
@@ -110,6 +111,7 @@
     "@types/mock-fs": "^4.13.0",
     "@types/morgan": "^1.9.0",
     "@types/node-forge": "^1.3.0",
+    "@types/pg": "^8.6.6",
     "@types/recursive-readdir": "^2.2.0",
     "@types/stoppable": "^1.1.0",
     "@types/supertest": "^2.0.8",
diff --git a/packages/backend-common/src/database/connectors/postgres.ts b/packages/backend-common/src/database/connectors/postgres.ts
index afa0d1f732..7dab81dcbb 100644
--- a/packages/backend-common/src/database/connectors/postgres.ts
+++ b/packages/backend-common/src/database/connectors/postgres.ts
@@ -22,6 +22,7 @@ import { mergeDatabaseConfig } from '../config';
 import { DatabaseConnector } from '../types';
 import defaultNameOverride from './defaultNameOverride';
 import defaultSchemaOverride from './defaultSchemaOverride';
+import { Client } from 'pg';
 
 /**
  * Creates a knex postgres database connection
@@ -41,7 +42,7 @@ export function createPgDatabaseClient(
   if (role) {
     database.client.pool.on(
       'createSuccess',
-      (_event: number, pgClient: Knex.Client) => {
+      (_event: number, pgClient: Client) => {
         pgClient.query(`SET ROLE ${role}`, (err: Error, _res: any) => {
           if (err) throw err;
         });
diff --git a/yarn.lock b/yarn.lock
index 7d00ad8f19..e8567c9620 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3453,6 +3453,7 @@ __metadata:
     "@types/mock-fs": ^4.13.0
     "@types/morgan": ^1.9.0
     "@types/node-forge": ^1.3.0
+    "@types/pg": ^8.6.6
     "@types/recursive-readdir": ^2.2.0
     "@types/stoppable": ^1.1.0
     "@types/supertest": ^2.0.8
@@ -3489,6 +3490,7 @@ __metadata:
     mysql2: ^2.2.5
     node-fetch: ^2.6.7
     node-forge: ^1.3.1
+    pg: ^8.9.0
     raw-body: ^2.4.1
     recursive-readdir: ^2.2.2
     request: ^2.88.2
@@ -15117,6 +15119,17 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@types/pg@npm:^8.6.6":
+  version: 8.6.6
+  resolution: "@types/pg@npm:8.6.6"
+  dependencies:
+    "@types/node": "*"
+    pg-protocol: "*"
+    pg-types: ^2.2.0
+  checksum: ac145553a8ad2f357feacad1bceaf5d6ce904eb9d66233b84c469a2b4fa3738d4ebdf29b7ea45387be2d07f915fd873a229f90a2f766d7c377afa7c41fbcf8d1
+  languageName: node
+  linkType: hard
+
 "@types/pluralize@npm:^0.0.29":
   version: 0.0.29
   resolution: "@types/pluralize@npm:0.0.29"
@@ -31569,14 +31582,14 @@ __metadata:
   languageName: node
   linkType: hard
 
-"pg-protocol@npm:^1.5.0":
-  version: 1.5.0
-  resolution: "pg-protocol@npm:1.5.0"
-  checksum: b839d12cafe942ef9cbc5b13c174eb2356804fb4fe8ead8279f46a36be90722d19a91409955beb8a3d5301639c44854e49749de4aef02dc361fee3e2a61fb1e4
+"pg-protocol@npm:*, pg-protocol@npm:^1.6.0":
+  version: 1.6.0
+  resolution: "pg-protocol@npm:1.6.0"
+  checksum: e12662d2de2011e0c3a03f6a09f435beb1025acdc860f181f18a600a5495dc38a69d753bbde1ace279c8c442536af9c1a7c11e1d0fe3fad3aa1348b28d9d2683
   languageName: node
   linkType: hard
 
-"pg-types@npm:^2.1.0":
+"pg-types@npm:^2.1.0, pg-types@npm:^2.2.0":
   version: 2.2.0
   resolution: "pg-types@npm:2.2.0"
   dependencies:
@@ -31589,15 +31602,15 @@ __metadata:
   languageName: node
   linkType: hard
 
-"pg@npm:^8.3.0, pg@npm:^8.4.0":
-  version: 8.8.0
-  resolution: "pg@npm:8.8.0"
+"pg@npm:^8.3.0, pg@npm:^8.4.0, pg@npm:^8.9.0":
+  version: 8.9.0
+  resolution: "pg@npm:8.9.0"
   dependencies:
     buffer-writer: 2.0.0
     packet-reader: 1.0.0
     pg-connection-string: ^2.5.0
     pg-pool: ^3.5.2
-    pg-protocol: ^1.5.0
+    pg-protocol: ^1.6.0
     pg-types: ^2.1.0
     pgpass: 1.x
   peerDependencies:
@@ -31605,7 +31618,7 @@ __metadata:
   peerDependenciesMeta:
     pg-native:
       optional: true
-  checksum: fa30a85814dd7238b582c3bc6c0b9e2b0ae38dd0a6bb485ef480e64bb5ce589de6cb873ce4d3cd10c37a3e0a1e1281ba75dc7d80b1a68bae91999cd5b70d398b
+  checksum: dfd158955318f9ffb9428eaada29f3ee98b9eb07e87ed4b56589a19984d109f23bb8f88db78b7d7f870553e5b75ca0d58d0ed55755a8c6aed5df44e038c1d529
   languageName: node
   linkType: hard