diff --git a/src/ServiceManager.php b/src/ServiceManager.php
index de94d202..e7d3c706 100644
--- a/src/ServiceManager.php
+++ b/src/ServiceManager.php
@@ -53,20 +53,42 @@
  *
  * @see ConfigInterface
  *
- * @psalm-import-type ServiceManagerConfigurationType from ConfigInterface
- * @psalm-import-type AbstractFactoriesConfigurationType from ConfigInterface
- * @psalm-import-type DelegatorsConfigurationType from ConfigInterface
- * @psalm-import-type FactoriesConfigurationType from ConfigInterface
- * @psalm-import-type InitializersConfigurationType from ConfigInterface
- * @psalm-import-type LazyServicesConfigurationType from ConfigInterface
+ * @psalm-type AbstractFactoriesConfiguration = array<
+ *      array-key,
+ *      (class-string<Factory\AbstractFactoryInterface>|Factory\AbstractFactoryInterface)
+ * >
+ * @psalm-type DelegatorsConfiguration = array<
+ *      string,
+ *      array<
+ *          array-key,
+ *          (class-string<Factory\DelegatorFactoryInterface>|Factory\DelegatorFactoryInterface)
+ *          |callable(ContainerInterface,string,callable():object,array<mixed>|null):object
+ *      >
+ * >
+ * @psalm-type FactoriesConfiguration = array<
+ *      string,
+ *      (class-string<Factory\FactoryInterface>|Factory\FactoryInterface)
+ *      |callable(ContainerInterface,?string,?array<mixed>|null):object
+ * >
+ * @psalm-type InitializersConfiguration = array<
+ *      array-key,
+ *      (class-string<Initializer\InitializerInterface>|Initializer\InitializerInterface)
+ *      |callable(ContainerInterface,object):void
+ * >
+ * @psalm-type LazyServicesConfiguration = array{
+ *      class_map?:array<string,class-string>,
+ *      proxies_namespace?:non-empty-string,
+ *      proxies_target_dir?:non-empty-string,
+ *      write_proxy_files?:bool
+ * }
  * @psalm-type ServiceManagerConfiguration = array{
- *     abstract_factories?: AbstractFactoriesConfigurationType,
+ *     abstract_factories?: AbstractFactoriesConfiguration,
  *     aliases?: array<string,string>,
- *     delegators?: DelegatorsConfigurationType,
- *     factories?: FactoriesConfigurationType,
- *     initializers?: InitializersConfigurationType,
+ *     delegators?: DelegatorsConfiguration,
+ *     factories?: FactoriesConfiguration,
+ *     initializers?: InitializersConfiguration,
  *     invokables?: array<string,string>,
- *     lazy_services?: LazyServicesConfigurationType,
+ *     lazy_services?: LazyServicesConfiguration,
  *     services?: array<string,object|array>,
  *     shared?:array<string,bool>,
  *     shared_by_default?:bool,
@@ -99,7 +121,7 @@ class ServiceManager implements ServiceLocatorInterface
 
     /**
      * @var string[][]|Factory\DelegatorFactoryInterface[][]
-     * @psalm-var DelegatorsConfigurationType
+     * @psalm-var DelegatorsConfiguration
      */
     protected $delegators = [];
 
@@ -107,19 +129,19 @@ class ServiceManager implements ServiceLocatorInterface
      * A list of factories (either as string name or callable)
      *
      * @var string[]|callable[]
-     * @psalm-var FactoriesConfigurationType
+     * @psalm-var FactoriesConfiguration
      */
     protected $factories = [];
 
     /**
      * @var Initializer\InitializerInterface[]|callable[]
-     * @psalm-var InitializersConfigurationType
+     * @psalm-var InitializersConfiguration
      */
     protected $initializers = [];
 
     /**
      * @var array
-     * @psalm-var LazyServicesConfigurationType
+     * @psalm-var LazyServicesConfiguration
      */
     protected $lazyServices = [];
 
@@ -512,7 +534,7 @@ public function setShared($name, $flag)
     /**
      * Instantiate initializers for to avoid checks during service construction.
      *
-     * @psalm-param InitializersConfigurationType $initializers
+     * @psalm-param InitializersConfiguration $initializers
      */
     private function resolveInitializers(array $initializers): void
     {
@@ -689,8 +711,8 @@ private function createLazyServiceDelegatorFactory(): LazyServiceFactory
      * It works with strings and class instances.
      * It's not possible to de-duple anonymous functions
      *
-     * @psalm-param DelegatorsConfigurationType $config
-     * @psalm-return DelegatorsConfigurationType
+     * @psalm-param DelegatorsConfiguration $config
+     * @psalm-return DelegatorsConfiguration
      */
     private function mergeDelegators(array $config): array
     {
@@ -745,7 +767,7 @@ private function createAliasesAndFactoriesForInvokables(array $invokables): arra
      * a given service name we do not have a service instance
      * in the cache OR override is explicitly allowed.
      *
-     * @psalm-param ServiceManagerConfigurationType $config
+     * @psalm-param ServiceManagerConfiguration $config
      * @throws ContainerModificationsNotAllowedException If any
      *     service key is invalid.
      */