diff --git a/concha/contact_clustering.ipynb b/concha/contact_clustering.ipynb
index bfbfeef9eeea960d3bc76c6c5f0ea8b181e1757a..8bd2a95ef34932173a54db84edd0072b97987647 100644
--- a/concha/contact_clustering.ipynb
+++ b/concha/contact_clustering.ipynb
@@ -20,7 +20,6 @@
     "# Required imports\n",
     "import ipynb\n",
     "from ipynb.fs.full.contact_features import *\n",
-    "from ipynb.fs.full.assortativity_features import *\n",
     "from ipynb.fs.full.utils import *\n",
     "\n",
     "import os\n",