diff --git a/easystacks/pilot.nessi.no/2023.06/eessi-2023.06-eb-4.9.1-2023b.yml b/easystacks/pilot.nessi.no/2023.06/eessi-2023.06-eb-4.9.1-2023b.yml
index 29bb31e9aa..03da218a78 100644
--- a/easystacks/pilot.nessi.no/2023.06/eessi-2023.06-eb-4.9.1-2023b.yml
+++ b/easystacks/pilot.nessi.no/2023.06/eessi-2023.06-eb-4.9.1-2023b.yml
@@ -25,3 +25,4 @@ easyconfigs:
   - GDB-13.2-GCCcore-13.2.0.eb
   - IPython-8.17.2-GCCcore-13.2.0.eb
   - Qt5-5.15.13-GCCcore-13.2.0.eb
+  - NLTK-3.8.1-foss-2023b.eb