diff --git a/scrapy/pqueues.py b/scrapy/pqueues.py
index 654758ce7..9fd5d5633 100644
--- a/scrapy/pqueues.py
+++ b/scrapy/pqueues.py
@@ -35,9 +35,6 @@ class ScrapyPriorityQueue:
     ``__init__`` method of ScrapyPriorityQueue receives a downstream_queue_cls argument, which is a class
     used to instantiate a new (internal) queue when a new priority is allocated.
 
-    Only integer priorities should be used. Lower numbers are higher
-    priorities.
-
     startprios is a sequence of priorities to start with. If the queue was
     previously closed leaving some priority buckets non-empty, those priorities
     should be passed in startprios.