diff --git a/dictionaries/CallMap.php b/dictionaries/CallMap.php
index 6d16e5a4f..b3a215ef4 100644
--- a/dictionaries/CallMap.php
+++ b/dictionaries/CallMap.php
@@ -3374,6 +3374,18 @@ return [
 'func_num_args' => ['int'],
 'function_exists' => ['bool', 'function'=>'string'],
 'fwrite' => ['int|false', 'stream'=>'resource', 'data'=>'string', 'length='=>'int'],
+'Fiber::__construct' => ['void', 'callback'=>'callable'],
+'Fiber::start' => ['mixed', '...args'=>'mixed'],
+'Fiber::resume' => ['mixed', 'value='=>'null|mixed'],
+'Fiber::throw' => ['mixed', 'exception'=>'Throwable'],
+'Fiber::isStarted' => ['bool'],
+'Fiber::isSuspended' => ['bool'],
+'Fiber::isRunning' => ['bool'],
+'Fiber::isTerminated' => ['bool'],
+'Fiber::getReturn' => ['mixed'],
+'Fiber::getCurrent' => ['?self'],
+'Fiber::suspend' => ['mixed', 'value='=>'null|mixed'],
+'FiberError::__construct' => ['void'],
 'gc_collect_cycles' => ['int'],
 'gc_disable' => ['void'],
 'gc_enable' => ['void'],
diff --git a/dictionaries/CallMap_81_delta.php b/dictionaries/CallMap_81_delta.php
index 9bde94acd..f0711686a 100644
--- a/dictionaries/CallMap_81_delta.php
+++ b/dictionaries/CallMap_81_delta.php
@@ -24,6 +24,18 @@ return [
     'mysqli_fetch_column' => ['null|int|float|string|false', 'result'=>'mysqli_result', 'column='=>'int'],
     'mysqli_result::fetch_column' => ['null|int|float|string|false', 'column='=>'int'],
     'CURLStringFile::__construct' => ['void', 'data'=>'string', 'postname'=>'string', 'mime='=>'string'],
+    'Fiber::__construct' => ['void', 'callback'=>'callable'],
+    'Fiber::start' => ['mixed', '...args'=>'mixed'],
+    'Fiber::resume' => ['mixed', 'value='=>'null|mixed'],
+    'Fiber::throw' => ['mixed', 'exception'=>'Throwable'],
+    'Fiber::isStarted' => ['bool'],
+    'Fiber::isSuspended' => ['bool'],
+    'Fiber::isRunning' => ['bool'],
+    'Fiber::isTerminated' => ['bool'],
+    'Fiber::getReturn' => ['mixed'],
+    'Fiber::getCurrent' => ['?self'],
+    'Fiber::suspend' => ['mixed', 'value='=>'null|mixed'],
+    'FiberError::__construct' => ['void'],
   ],
 
   'changed' => [