diff --git a/composer.json b/composer.json
index c1c0e3d..111768a 100644
--- a/composer.json
+++ b/composer.json
@@ -21,7 +21,7 @@
     "ext-json": "*",
     "geoip2/geoip2": "^v3.0.0",
     "maxmind/web-service-common": "^0.9.0",
-    "respect/validation": "^2.2.4"
+    "respect/validation": "^2.3.1"
   },
   "require-dev": {
     "friendsofphp/php-cs-fixer": "3.*",
diff --git a/phpstan.neon b/phpstan.neon
index c823f0e..06f84c2 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -4,5 +4,3 @@ parameters:
         - src
         - tests
     checkMissingIterableValueType: false
-    ignoreErrors:
-        - '/Parameter \#\d+ \.\.\.\$rule of static method Respect\\Validation\\StaticValidator::keySet\(\) expects Respect\\Validation\\Rules\\Key, Respect\\Validation\\ChainedValidator given\./'
diff --git a/src/MinFraud/Validation/Rules/Address.php b/src/MinFraud/Validation/Rules/Address.php
index 6aadebb..78fb3ef 100644
--- a/src/MinFraud/Validation/Rules/Address.php
+++ b/src/MinFraud/Validation/Rules/Address.php
@@ -18,7 +18,7 @@ public static function keys(): array
             v::key('address_2', new IntOrString(), false),
             v::key('city', v::stringType(), false),
             v::key('company', v::stringType(), false),
-            v::key('country', v::countryCode(), false),
+            v::key('country', v::allOf(v::countryCode(), v::uppercase()), false),
             v::key('first_name', v::stringType(), false),
             v::key('last_name', v::stringType(), false),
             v::key('phone_country_code', new TelephoneCountryCode(), false),
diff --git a/src/MinFraud/Validation/Rules/CreditCard.php b/src/MinFraud/Validation/Rules/CreditCard.php
index 0f55bd5..e11c21f 100644
--- a/src/MinFraud/Validation/Rules/CreditCard.php
+++ b/src/MinFraud/Validation/Rules/CreditCard.php
@@ -20,7 +20,7 @@ public function __construct()
                 v::key('bank_name', v::stringType(), false),
                 v::key('bank_phone_country_code', new TelephoneCountryCode(), false),
                 v::key('bank_phone_number', v::stringType(), false),
-                v::key('country', v::countryCode(), false),
+                v::key('country', v::allOf(v::countryCode(), v::uppercase()), false),
                 v::key('cvv_result', v::stringType()->length(1, 1), false),
                 v::key('issuer_id_number', v::regex('/^(?:[0-9]{6}|[0-9]{8})$/'), false),
                 v::key('last_digits', v::regex('/^(?:[0-9]{2}|[0-9]{4})$/'), false),
diff --git a/src/MinFraud/Validation/Rules/Event.php b/src/MinFraud/Validation/Rules/Event.php
index ea2a33c..7f6548f 100644
--- a/src/MinFraud/Validation/Rules/Event.php
+++ b/src/MinFraud/Validation/Rules/Event.php
@@ -20,7 +20,12 @@ public function __construct()
                 'time',
                 v::anyOf(
                     v::dateTime(\DateTime::RFC3339),
-                    v::dateTime(\DateTime::RFC3339_EXTENDED)
+                    v::dateTime(\DateTime::RFC3339_EXTENDED),
+                    // Respect/Validation no longer correctly supports the RFC 3339
+                    // formats as of 2.3. See
+                    // https://github.com/Respect/Validation/issues/1442.
+                    v::dateTime('Y-m-d\TH:i:sp'),
+                    v::dateTime('Y-m-d\TH:i:s.vp'),
                 ),
                 false
             ),
diff --git a/tests/MaxMind/Test/MinFraud/ReportTransaction/ReportTransactionTest.php b/tests/MaxMind/Test/MinFraud/ReportTransaction/ReportTransactionTest.php
index 388c2e8..1635c63 100644
--- a/tests/MaxMind/Test/MinFraud/ReportTransaction/ReportTransactionTest.php
+++ b/tests/MaxMind/Test/MinFraud/ReportTransaction/ReportTransactionTest.php
@@ -112,7 +112,7 @@ public static function requestsMissingRequiredFields(): array
     public function testUnknownKey(): void
     {
         $this->expectException(InvalidInputException::class);
-        $this->expectExceptionMessage('Must have keys');
+        $this->expectExceptionMessage('Must not have keys');
 
         $req = array_merge(
             Data::minimalRequest(),
diff --git a/tests/MaxMind/Test/MinFraud/Validation/Rules/CreditCardTest.php b/tests/MaxMind/Test/MinFraud/Validation/Rules/CreditCardTest.php
index df6147e..6637666 100644
--- a/tests/MaxMind/Test/MinFraud/Validation/Rules/CreditCardTest.php
+++ b/tests/MaxMind/Test/MinFraud/Validation/Rules/CreditCardTest.php
@@ -6,7 +6,6 @@
 
 use MaxMind\MinFraud\Validation\Rules\CreditCard;
 use PHPUnit\Framework\TestCase;
-use Respect\Validation\Exceptions\CountryCodeException;
 
 /**
  * @coversNothing
@@ -24,7 +23,7 @@ public function testInvalidCountry($code): void
     {
         $validator = new CreditCard();
 
-        $this->expectException(CountryCodeException::class);
+        $this->expectExceptionMessageMatches('/^country must be a valid country|country must be uppercase$/');
 
         $validator->check([
             'country' => $code,
diff --git a/tests/MaxMind/Test/MinFraudTest.php b/tests/MaxMind/Test/MinFraudTest.php
index fbc85d8..9ec89cc 100644
--- a/tests/MaxMind/Test/MinFraudTest.php
+++ b/tests/MaxMind/Test/MinFraudTest.php
@@ -278,7 +278,7 @@ public function testMissingIpAddressWithoutValidation(string $class, string $ser
     public function testUnknownKeys(string $method): void
     {
         $this->expectException(InvalidInputException::class);
-        $this->expectExceptionMessage('Must have keys');
+        $this->expectExceptionMessage('Must not have keys');
 
         $this->createMinFraudRequestWithFullResponse(
             'insights',
@@ -996,7 +996,7 @@ public static function invalidQuantities(): array
     public function testBadShoppingCartItemWithDoubleArray(): void
     {
         $this->expectException(InvalidInputException::class);
-        $this->expectExceptionMessage('Must have keys');
+        $this->expectExceptionMessage('Must not have keys');
 
         $this->createMinFraudRequestWithFullResponse(
             'insights',