diff --git a/pytools/tag.py b/pytools/tag.py
index 088114d649ba812d7d847ecd771021d28e290218..a125a1127b5f62d31dfbf9d6e4d7ca63c1f894ba 100644
--- a/pytools/tag.py
+++ b/pytools/tag.py
@@ -180,7 +180,7 @@ class Taggable:
     .. method:: tagged
     .. method:: without_tags
 
-    .. versionadded:: 2020.4.5
+    .. versionadded:: 2021.1
     """
 
     def __init__(self, tags: TagsType = frozenset()):