diff --git a/package.json b/package.json
index 343bf5b..f177072 100644
--- a/package.json
+++ b/package.json
@@ -47,7 +47,6 @@
     "hast-util-has-property": "^3.0.0",
     "hast-util-to-string": "^3.0.0",
     "hast-util-whitespace": "^3.0.0",
-    "not": "^0.1.0",
     "nth-check": "^2.0.0",
     "property-information": "^6.0.0",
     "space-separated-tokens": "^2.0.0",