diff --git a/system/Cookie/Cookie.php b/system/Cookie/Cookie.php
index df75c03c7bcb..ad461c721112 100644
--- a/system/Cookie/Cookie.php
+++ b/system/Cookie/Cookie.php
@@ -99,7 +99,16 @@ class Cookie implements ArrayAccess, CloneableCookieInterface
      * Default attributes for a Cookie object. The keys here are the
      * lowercase attribute names. Do not camelCase!
      *
-     * @var array<string, bool|int|string>
+     * @var array{
+     *  prefix: string,
+     *  expires: int,
+     *  path: string,
+     *  domain: string,
+     *  secure: bool,
+     *  httponly: bool,
+     *  samesite: string,
+     *  raw: bool,
+     * }
      */
     private static array $defaults = [
         'prefix'   => '',
@@ -127,9 +136,27 @@ class Cookie implements ArrayAccess, CloneableCookieInterface
      *
      * This method is called from Response::__construct().
      *
-     * @param array<string, bool|int|string>|CookieConfig $config
+     * @param array{
+     *  prefix?: string,
+     *  expires?: int,
+     *  path?: string,
+     *  domain?: string,
+     *  secure?: bool,
+     *  httponly?: bool,
+     *  samesite?: string,
+     *  raw?: bool,
+     * }|CookieConfig $config
      *
-     * @return array<string, mixed> The old defaults array. Useful for resetting.
+     * @return array{
+     *  prefix: string,
+     *  expires: int,
+     *  path: string,
+     *  domain: string,
+     *  secure: bool,
+     *  httponly: bool,
+     *  samesite: string,
+     *  raw: bool,
+     * } The old defaults array. Useful for resetting.
      */
     public static function setDefaults($config = [])
     {
@@ -198,9 +225,9 @@ public static function fromHeaderString(string $cookie, bool $raw = false)
     /**
      * Construct a new Cookie instance.
      *
-     * @param string                         $name    The cookie's name
-     * @param string                         $value   The cookie's value
-     * @param array<string, bool|int|string> $options The cookie's options
+     * @param string                                                                                                                                                                                      $name    The cookie's name
+     * @param string                                                                                                                                                                                      $value   The cookie's value
+     * @param array{prefix?: string, max-age?: int|numeric-string, expires?: DateTimeInterface|int|string, path?: string, domain?: string, secure?: bool, httponly?: bool, samesite?: string, raw?: bool} $options The cookie's options
      *
      * @throws CookieException
      */
diff --git a/system/Cookie/CookieInterface.php b/system/Cookie/CookieInterface.php
index c848fa8884ec..b4a7ea3d7320 100644
--- a/system/Cookie/CookieInterface.php
+++ b/system/Cookie/CookieInterface.php
@@ -145,7 +145,14 @@ public function isRaw(): bool;
      * Gets the options that are passable to the `setcookie` variant
      * available on PHP 7.3+
      *
-     * @return array<string, bool|int|string>
+     * @return array{
+     *  expires: int,
+     *  path: string,
+     *  domain: string,
+     *  secure: bool,
+     *  httponly: bool,
+     *  samesite: string,
+     * }
      */
     public function getOptions(): array;
 
@@ -164,7 +171,18 @@ public function __toString();
     /**
      * Returns the array representation of the Cookie object.
      *
-     * @return array<string, bool|int|string>
+     * @return array{
+     *  name: string,
+     *  value: string,
+     *  prefix: string,
+     *  raw: bool,
+     *  expires: int,
+     *  path: string,
+     *  domain: string,
+     *  secure: bool,
+     *  httponly: bool,
+     *  samesite: string,
+     * }
      */
     public function toArray(): array;
 }
diff --git a/tests/system/Cookie/CookieStoreTest.php b/tests/system/Cookie/CookieStoreTest.php
index 7e752fde5da5..60498052ee93 100644
--- a/tests/system/Cookie/CookieStoreTest.php
+++ b/tests/system/Cookie/CookieStoreTest.php
@@ -78,7 +78,7 @@ public function testCookieStoreInitViaHeaders(): void
     public function testInvalidCookieStored(): void
     {
         $this->expectException(CookieException::class);
-        new CookieStore([new DateTimeImmutable('now')]);
+        new CookieStore([new DateTimeImmutable('now')]); // @phpstan-ignore argument.type
     }
 
     public function testPutRemoveCookiesInStore(): void
diff --git a/utils/phpstan-baseline/argument.type.neon b/utils/phpstan-baseline/argument.type.neon
index 7301faeae35d..34a1a8c9986e 100644
--- a/utils/phpstan-baseline/argument.type.neon
+++ b/utils/phpstan-baseline/argument.type.neon
@@ -1,4 +1,4 @@
-# total 138 errors
+# total 136 errors
 
 parameters:
     ignoreErrors:
@@ -82,16 +82,6 @@ parameters:
             count: 2
             path: ../../tests/system/Config/FactoriesTest.php
 
-        -
-            message: '#^Parameter \#1 \$cookies of class CodeIgniter\\Cookie\\CookieStore constructor expects array\<CodeIgniter\\Cookie\\Cookie\>, array\<int, DateTimeImmutable\> given\.$#'
-            count: 1
-            path: ../../tests/system/Cookie/CookieStoreTest.php
-
-        -
-            message: '#^Parameter \#3 \$options of class CodeIgniter\\Cookie\\Cookie constructor expects array\<string, bool\|int\|string\>, array\<string, DateTimeImmutable\> given\.$#'
-            count: 1
-            path: ../../tests/system/Cookie/CookieTest.php
-
         -
             message: '#^Parameter \#1 \$from of method CodeIgniter\\Database\\BaseBuilder\:\:from\(\) expects array\|string, null given\.$#'
             count: 1
diff --git a/utils/phpstan-baseline/loader.neon b/utils/phpstan-baseline/loader.neon
index c715fc07bd3b..e54589fea853 100644
--- a/utils/phpstan-baseline/loader.neon
+++ b/utils/phpstan-baseline/loader.neon
@@ -1,4 +1,4 @@
-# total 3273 errors
+# total 3271 errors
 includes:
     - argument.type.neon
     - assign.propertyType.neon