diff --git a/src/Psalm/Internal/Codebase/Functions.php b/src/Psalm/Internal/Codebase/Functions.php
index 8b5c2a6851e..32cb831d926 100644
--- a/src/Psalm/Internal/Codebase/Functions.php
+++ b/src/Psalm/Internal/Codebase/Functions.php
@@ -429,7 +429,8 @@ public function isCallMapFunctionPure(
             // stream/socket io
             'stream_context_set_option', 'socket_write', 'stream_set_blocking', 'socket_close',
             'socket_set_option', 'stream_set_write_buffer', 'stream_socket_enable_crypto', 'stream_copy_to_stream',
-            'stream_wrapper_register',
+            'stream_wrapper_register', 'socket_connect', 'socket_bind', 'socket_set_block', 'socket_set_nonblock',
+            'socket_listen',
 
             // meta calls
             'call_user_func', 'call_user_func_array', 'define', 'create_function',