diff --git a/composer.json b/composer.json
index 7013fe0..86e4a27 100644
--- a/composer.json
+++ b/composer.json
@@ -11,7 +11,7 @@
   "require": {
     "php": "^8.1",
     "bentools/iterable-functions": "^2.0.1",
-    "psr/simple-cache": "^3.0",
+    "psr/simple-cache": "^2.0",
     "react/async": "^4.0",
     "react/cache": "^1.1",
     "thecodingmachine/safe": "^2.2 || ^1.3"
diff --git a/composer.lock b/composer.lock
index ffcfb43..1fd21fe 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "9ce2eaae420670d0a1cc1aaf5e64ba47",
+    "content-hash": "305779bf6f0283391c79e9973c1664a8",
     "packages": [
         {
             "name": "bentools/iterable-functions",
@@ -55,16 +55,16 @@
         },
         {
             "name": "psr/simple-cache",
-            "version": "3.0.0",
+            "version": "2.0.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/php-fig/simple-cache.git",
-                "reference": "764e0b3939f5ca87cb904f570ef9be2d78a07865"
+                "reference": "8707bf3cea6f710bf6ef05491234e3ab06f6432a"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/php-fig/simple-cache/zipball/764e0b3939f5ca87cb904f570ef9be2d78a07865",
-                "reference": "764e0b3939f5ca87cb904f570ef9be2d78a07865",
+                "url": "https://api.github.com/repos/php-fig/simple-cache/zipball/8707bf3cea6f710bf6ef05491234e3ab06f6432a",
+                "reference": "8707bf3cea6f710bf6ef05491234e3ab06f6432a",
                 "shasum": ""
             },
             "require": {
@@ -73,7 +73,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "3.0.x-dev"
+                    "dev-master": "2.0.x-dev"
                 }
             },
             "autoload": {
@@ -100,9 +100,9 @@
                 "simple-cache"
             ],
             "support": {
-                "source": "https://github.com/php-fig/simple-cache/tree/3.0.0"
+                "source": "https://github.com/php-fig/simple-cache/tree/2.0.0"
             },
-            "time": "2021-10-29T13:26:27+00:00"
+            "time": "2021-10-29T13:22:09+00:00"
         },
         {
             "name": "react/async",
@@ -4771,16 +4771,16 @@
         },
         {
             "name": "phpstan/phpdoc-parser",
-            "version": "1.6.4",
+            "version": "1.7.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpstan/phpdoc-parser.git",
-                "reference": "135607f9ccc297d6923d49c2bcf309f509413215"
+                "reference": "367a8d9d5f7da2a0136422d27ce8840583926955"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpstan/phpdoc-parser/zipball/135607f9ccc297d6923d49c2bcf309f509413215",
-                "reference": "135607f9ccc297d6923d49c2bcf309f509413215",
+                "url": "https://api.github.com/repos/phpstan/phpdoc-parser/zipball/367a8d9d5f7da2a0136422d27ce8840583926955",
+                "reference": "367a8d9d5f7da2a0136422d27ce8840583926955",
                 "shasum": ""
             },
             "require": {
@@ -4810,9 +4810,9 @@
             "description": "PHPDoc parser with support for nullable, intersection and generic types",
             "support": {
                 "issues": "https://github.com/phpstan/phpdoc-parser/issues",
-                "source": "https://github.com/phpstan/phpdoc-parser/tree/1.6.4"
+                "source": "https://github.com/phpstan/phpdoc-parser/tree/1.7.0"
             },
-            "time": "2022-06-26T13:09:08+00:00"
+            "time": "2022-08-09T12:23:23+00:00"
         },
         {
             "name": "phpstan/phpstan",
diff --git a/src/PSR16Adapter.php b/src/PSR16Adapter.php
index 2d77b47..a9914f9 100644
--- a/src/PSR16Adapter.php
+++ b/src/PSR16Adapter.php
@@ -23,7 +23,7 @@ public function __construct(
      * @inheritDoc
      * @phpstan-ignore-next-line
      */
-    public function get(string $key, mixed $default = null): mixed
+    public function get(string $key, mixed $default = null)
     {
         /**
          * @psalm-suppress TooManyTemplateParams
@@ -35,7 +35,7 @@ public function get(string $key, mixed $default = null): mixed
      * @inheritDoc
      * @phpstan-ignore-next-line
      */
-    public function set(string $key, mixed $value, DateInterval|int|null $ttl = null): bool
+    public function set(string $key, mixed $value, DateInterval|int|null $ttl = null)
     {
         /**
          * @var bool
@@ -44,7 +44,10 @@ public function set(string $key, mixed $value, DateInterval|int|null $ttl = null
         return await($this->cache->set($key, $value, $this->convertToSeconds($ttl)));
     }
 
-    public function delete(string $key): bool
+    /**
+     * @inheritDoc
+     */
+    public function delete(string $key)
     {
         /**
          * @var bool
@@ -53,7 +56,10 @@ public function delete(string $key): bool
         return await($this->cache->delete($key));
     }
 
-    public function clear(): bool
+    /**
+     * @inheritDoc
+     */
+    public function clear()
     {
         /**
          * @var bool
@@ -81,7 +87,7 @@ public function getMultiple(iterable $keys, mixed $default = null): iterable
      * @inheritDoc
      * @phpstan-ignore-next-line
      */
-    public function setMultiple(iterable $values, DateInterval|int|null $ttl = null): bool
+    public function setMultiple(iterable $values, DateInterval|int|null $ttl = null)
     {
         /**
          * @var bool
@@ -94,7 +100,7 @@ public function setMultiple(iterable $values, DateInterval|int|null $ttl = null)
     /**
      * @inheritDoc
      */
-    public function deleteMultiple(iterable $keys): bool
+    public function deleteMultiple(iterable $keys)
     {
         /**
          * @var bool
@@ -105,7 +111,10 @@ public function deleteMultiple(iterable $keys): bool
         return await($this->cache->deleteMultiple(iterable_to_array($keys)));
     }
 
-    public function has(string $key): bool
+    /**
+     * @inheritDoc
+     */
+    public function has(string $key)
     {
         /**
          * @var bool