diff --git a/Cargo.toml b/Cargo.toml
index 74d537c..2050797 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -16,7 +16,6 @@ keywords = [
     "cryptography",
 ]
 categories = [
-    "blockchain",
     "cryptography"
 ]
 repository = "https://github.com/wavesplatform/waves-rust"