diff --git a/pyproject.toml b/pyproject.toml
index 1f3bb6f..f4b8012 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -15,7 +15,6 @@ dependencies = [
     "nltk",
     "xmltodict",
     "networkx>=2.8.1",
-    "py_heideltime",
     "cached-path==1.1.2",
 ]
 requires-python = ">=3.8"