diff --git a/typescript/option/package.json b/typescript/option/package.json
index 156a506..0e2dbd1 100644
--- a/typescript/option/package.json
+++ b/typescript/option/package.json
@@ -19,7 +19,21 @@
     "keywords": [
         "typescript",
         "fsharp",
+        "fp",
+        "functional-programming",
+        "monad",
+        "immutable",
+        "stateless",
+        "classless",
         "option",
+        "typesafe",
+        "functor",
+        "pure",
+        "option",
+        "some",
+        "just",
+        "none",
+        "nothing",
         "maybe",
         "nullable"
     ],