diff --git a/anselm.csv b/anselm.csv
index 00d95b8f69d01529561f105dbf259d40e6602d0b..a80d607d1e25bc628aff3e0cf58ecef9ea2979cd 100644
--- a/anselm.csv
+++ b/anselm.csv
@@ -179,6 +179,7 @@ cURL/7.49.1-intel-2017a,1
 cURL/7.51.0,1
 cURL/7.53.1,1
 cURL/7.53.1-GCCcore-6.3.0,1
+Cython/0.27.3-Py-2.7,1
 Cython/0.27.3-Py-3.6,1
 dask/0.17.0-Py-3.6,1
 dataspaces/1.4.0,1