diff --git a/Cargo.toml b/Cargo.toml
index 970b9cf..f4f1ff3 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -5,11 +5,7 @@ readme = "README.md"
 license-file = "LICENSE"
 repository = "https://github.com/rkdud007/alloy-merkle-tree"
 keywords = ["merkle", "tree", "merkle-tree"]
-categories = [
-    "cryptography",
-    "data-structures",
-    "cryptography::cryptocurrencies ",
-]
+categories = ["cryptography", "data-structures", "cryptocurrencies"]
 exclude = [".github"]
 version = "0.7.0"
 edition = "2021"