diff --git a/easystacks/software.eessi.io/2023.06/zen4/eessi-2023.06-eb-4.9.3-2023a.yml b/easystacks/software.eessi.io/2023.06/zen4/eessi-2023.06-eb-4.9.3-2023a.yml
index cbacef6501..29ab1609da 100644
--- a/easystacks/software.eessi.io/2023.06/zen4/eessi-2023.06-eb-4.9.3-2023a.yml
+++ b/easystacks/software.eessi.io/2023.06/zen4/eessi-2023.06-eb-4.9.3-2023a.yml
@@ -7,3 +7,4 @@ easyconfigs:
   - Rivet-3.1.9-gompi-2023a-HepMC3-3.2.6.eb
   - GATK-4.5.0.0-GCCcore-12.3.0-Java-17.eb
   - ipympl-0.9.3-gfbf-2023a.eb
+  - LHAPDF-6.5.4-GCC-12.3.0.eb