diff --git a/Nargo.toml b/Nargo.toml
index 8b19e56..9ec1fe7 100644
--- a/Nargo.toml
+++ b/Nargo.toml
@@ -1,7 +1,8 @@
 [package]
 name="noir_merkleroot"
 authors = ["tomo<tomoima525@gmail.com>"]
-compiler_version = "0.7.1"
+compiler_version = ">=0.7.1"
 license = "MIT"
+type = "lib"
 
-[dependencies]
\ No newline at end of file
+[dependencies]