diff --git a/frosty.nimble b/frosty.nimble
index f5ef1b0..35ef11d 100644
--- a/frosty.nimble
+++ b/frosty.nimble
@@ -7,7 +7,7 @@ when defined(frostySorted):
   requires "https://github.com/narimiran/sorta < 1.0.0"
 when not defined(release):
   requires "https://github.com/disruptek/criterion < 1.0.0"
-  requires "https://github.com/disruptek/balls > 2.0.0 & < 3.0.0"
+  requires "https://github.com/disruptek/balls#rc"
 
 task test, "run unit tests":
   when defined(windows):