diff --git a/merkletree.nimble b/merkletree.nimble
index 3410e37..18de671 100644
--- a/merkletree.nimble
+++ b/merkletree.nimble
@@ -13,6 +13,4 @@ requires "stew ~= 0.4.2"
 requires "taskpools ~= 0.1.0"
 requires "chronos ~= 4.0.4"
 requires "asynctest ~= 0.5.4"
-
-dev:
-  requires "nimcrypto ~= 0.7.3"
+requires "nimcrypto ~= 0.7.3"