diff --git a/pyproject.toml b/pyproject.toml
index 855efe18..a1ce332e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -43,12 +43,9 @@ classifiers = [
 requires-python = ">=3.10,<3.13"
 
 dependencies = [
-    "ConfigSpace>=0.7,<1.0",
-    "grakel>=0.1,<0.2",
     "numpy>=1.0,<2.0",
     "pandas>=2.0,<3.0",
     "networkx>=2.6.3,<3.0",
-    "nltk>=3.6.4,<4.0",
     "scipy>=1.13.1",
     "torch>=2.0.1",
     "matplotlib>=3.0,<4.0",