diff --git a/lib/Cargo.toml b/lib/Cargo.toml
index 56a684d..8dac123 100644
--- a/lib/Cargo.toml
+++ b/lib/Cargo.toml
@@ -9,7 +9,7 @@ documentation = "https://docs.rs/rindex"
 homepage = "https://github.com/azizkayumov/rindex"
 repository = "https://github.com/azizkayumov/rindex"
 license = "Apache-2.0"
-keywords = ["tree", "spatial", "dynamic-index", "nearest-neighbor", "reverse-nearest-neighbor"]
+keywords = ["tree", "spatial", "dynamic-index", "nearest-neighbor", "reverse-knn", "knn-graph"]
 categories = ["algorithms", "data-structures"]
 authors = ["Kayumov A.I. <kayumovabduaziz@gmail.com>"]
 exclude = ["./github"]