diff --git a/lib/model/AjvValidator.js b/lib/model/AjvValidator.js
index 723b37217..2f0e10368 100644
--- a/lib/model/AjvValidator.js
+++ b/lib/model/AjvValidator.js
@@ -1,17 +1,11 @@
 'use strict';
 
+const Ajv = require('ajv');
+const addFormats = require('ajv-formats');
 const { Validator } = require('./Validator');
 const { ValidationErrorType } = require('../model/ValidationError');
 const { isObject, once, cloneDeep: lodashCloneDeep, omit } = require('../utils/objectUtils');
 
-const getAjv = once(() => {
-  try {
-    return require('ajv');
-  } catch (err) {
-    throw new Error('Optional ajv dependency not installed. Please run `npm install ajv --save`');
-  }
-});
-
 class AjvValidator extends Validator {
   static init(self, conf) {
     super.init(self, conf);
@@ -20,8 +14,6 @@ class AjvValidator extends Validator {
       allErrors: true,
     });
 
-    const Ajv = getAjv();
-
     // Create a normal Ajv instance.
     self.ajv = new Ajv(
       Object.assign(
@@ -43,8 +35,13 @@ class AjvValidator extends Validator {
     // A cache for the compiled validator functions.
     self.cache = new Map();
 
-    conf.onCreateAjv(self.ajv);
-    conf.onCreateAjv(self.ajvNoDefaults);
+    const setupAjv = (ajv) => {
+      addFormats(ajv);
+      conf.onCreateAjv(ajv);
+    };
+
+    setupAjv(self.ajv);
+    setupAjv(self.ajvNoDefaults);
   }
 
   beforeValidate({ json, model, options, ctx }) {
diff --git a/package-lock.json b/package-lock.json
index 00878a3b5..03cb6bbe7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,6 +10,7 @@
       "license": "MIT",
       "dependencies": {
         "ajv": "^8.6.2",
+        "ajv-formats": "^2.1.1",
         "db-errors": "^0.2.3"
       },
       "devDependencies": {
@@ -3670,6 +3671,22 @@
         "ajv": ">=5.0.0"
       }
     },
+    "node_modules/ajv-formats": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/ajv-formats/-/ajv-formats-2.1.1.tgz",
+      "integrity": "sha512-Wx0Kx52hxE7C18hkMEggYlEifqWZtYaRgouJor+WMdPnQyEK13vgEWyVNup7SoeeoLMsr4kf5h6dOW11I15MUA==",
+      "dependencies": {
+        "ajv": "^8.0.0"
+      },
+      "peerDependencies": {
+        "ajv": "^8.0.0"
+      },
+      "peerDependenciesMeta": {
+        "ajv": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/algoliasearch": {
       "version": "3.35.1",
       "resolved": "https://registry.npmjs.org/algoliasearch/-/algoliasearch-3.35.1.tgz",
@@ -22166,6 +22183,14 @@
       "dev": true,
       "requires": {}
     },
+    "ajv-formats": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/ajv-formats/-/ajv-formats-2.1.1.tgz",
+      "integrity": "sha512-Wx0Kx52hxE7C18hkMEggYlEifqWZtYaRgouJor+WMdPnQyEK13vgEWyVNup7SoeeoLMsr4kf5h6dOW11I15MUA==",
+      "requires": {
+        "ajv": "^8.0.0"
+      }
+    },
     "algoliasearch": {
       "version": "3.35.1",
       "resolved": "https://registry.npmjs.org/algoliasearch/-/algoliasearch-3.35.1.tgz",
diff --git a/package.json b/package.json
index d784ad538..43c36ef15 100644
--- a/package.json
+++ b/package.json
@@ -54,6 +54,7 @@
   "types": "./typings/objection/index.d.ts",
   "dependencies": {
     "ajv": "^8.6.2",
+    "ajv-formats": "^2.1.1",
     "db-errors": "^0.2.3"
   },
   "peerDependencies": {