diff --git a/README.md b/README.md
index f2be176..b7d93d4 100644
--- a/README.md
+++ b/README.md
@@ -242,7 +242,8 @@ A priority function works much like the comparator function except that it compa
 The following table shows which functions are required, optional or never used for each Collection:
 
 | Collection   |                           CMP                                   |                           CPY                                   |                                  STR                            |                                  FREE                           |                                  HASH                           |                                  PRI                            |
-| ------------ | :-------------------------------------------------------=-----: | :-------------------------------------------------------------: | :-------------------------------------------------------------: | :-------------------------------------------------------------: | :-------------------------------------------------------------: | :-------------------------------------------------------------: |
+| ------------ | :-------------------------------------------------------------: | :-------------------------------------------------------------: | :-------------------------------------------------------------: | :-------------------------------------------------------------: | :-------------------------------------------------------------: | :-------------------------------------------------------------: |
+| BitSet       | ![#2ef625](https://via.placeholder.com/20/2ef625/000000?text=+) | ![#2ef625](https://via.placeholder.com/20/2ef625/000000?text=+) | ![#2ef625](https://via.placeholder.com/20/2ef625/000000?text=+) | ![#2ef625](https://via.placeholder.com/20/2ef625/000000?text=+) | ![#2ef625](https://via.placeholder.com/20/2ef625/000000?text=+) | ![#2ef625](https://via.placeholder.com/20/2ef625/000000?text=+) |
 | Deque        | ![#9f3b94](https://via.placeholder.com/20/9f3b94/000000?text=+) | ![#9f3b94](https://via.placeholder.com/20/9f3b94/000000?text=+) | ![#497edd](https://via.placeholder.com/20/497edd/000000?text=+) | ![#00d3eb](https://via.placeholder.com/20/00d3eb/000000?text=+) | ![#2ef625](https://via.placeholder.com/20/2ef625/000000?text=+) | ![#2ef625](https://via.placeholder.com/20/2ef625/000000?text=+) |
 | HashMap      | ![#b82b28](https://via.placeholder.com/20/b82b28/000000?text=+) | ![#9f3b94](https://via.placeholder.com/20/9f3b94/000000?text=+) | ![#497edd](https://via.placeholder.com/20/497edd/000000?text=+) | ![#00d3eb](https://via.placeholder.com/20/00d3eb/000000?text=+) | ![#b82b28](https://via.placeholder.com/20/b82b28/000000?text=+) | ![#2ef625](https://via.placeholder.com/20/2ef625/000000?text=+) |
 | HashBidiMap  | ![#b82b28](https://via.placeholder.com/20/b82b28/000000?text=+) | ![#9f3b94](https://via.placeholder.com/20/9f3b94/000000?text=+) | ![#497edd](https://via.placeholder.com/20/497edd/000000?text=+) | ![#00d3eb](https://via.placeholder.com/20/00d3eb/000000?text=+) | ![#b82b28](https://via.placeholder.com/20/b82b28/000000?text=+) | ![#2ef625](https://via.placeholder.com/20/2ef625/000000?text=+) |