diff --git a/apatheia.nimble b/apatheia.nimble
index a06a038..4576ab7 100644
--- a/apatheia.nimble
+++ b/apatheia.nimble
@@ -9,4 +9,4 @@ srcDir        = "src"
 
 # Dependencies
 
-requires "nim >= 1.6.18"
+requires "chronos >= 4.0.0"