diff --git a/README.md b/README.md
index 83ee86d1..4bba7d7c 100644
--- a/README.md
+++ b/README.md
@@ -34,7 +34,7 @@ for a very detailed comparison with more benchmarks and analysis.
 | [git grep (Unicode)](https://www.kernel.org/pub/software/scm/git/docs/git-grep.html) | `LC_ALL=en_US.UTF-8 git grep -E -n -w '[A-Z]+_SUSPEND'` | 450 | 2.880s |
 | [sift](https://github.com/svent/sift) | `sift --git -n -w '[A-Z]+_SUSPEND'` | 450 | 3.656s |
 | [The Platinum Searcher](https://github.com/monochromegane/the_platinum_searcher) | `pt -w -e '[A-Z]+_SUSPEND'` | 450 | 12.369s |
-| [ack](http://beyondgrep.com/) | `ack -w '[A-Z]+_SUSPEND'` | 1878 | 16.952s |
+| [ack](https://github.com/petdance/ack2) | `ack -w '[A-Z]+_SUSPEND'` | 1878 | 16.952s |
 
 (Yes, `ack` [has](https://github.com/petdance/ack2/issues/445) a
 [bug](https://github.com/petdance/ack2/issues/14).)