diff --git a/.gitignore b/.gitignore
index 853717d..e1ac0b8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,3 +6,4 @@
 /ack-2.10.tar.gz
 /ack-2.12.tar.gz
 /ack-2.14.tar.gz
+/ack-2.16.tar.gz
diff --git a/sources b/sources
index b2696ad..5ace28f 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-43cfa05123ba0440fa3958690ee03bac  ack-2.14.tar.gz
+SHA512 (ack-2.16.tar.gz) = c475674466bf204046c54b3b1d6f346c784203aa5a6e098fef6e0553d0674da173318bd5fdff3495360775bbddb544f01974f7314dd19cdb149365ca34283572