diff --git a/easystacks/software.eessi.io/2026.06/eessi-2026.06-eb-5.4.1-2026.1.yml b/easystacks/software.eessi.io/2026.06/eessi-2026.06-eb-5.4.1-2026.1.yml
new file mode 100644
index 0000000000..ea5dd882b0
--- /dev/null
+++ b/easystacks/software.eessi.io/2026.06/eessi-2026.06-eb-5.4.1-2026.1.yml
@@ -0,0 +1,6 @@
+easyconfigs:
+  - MPICH-5.0.1-GCC-15.2.0.eb
+  - PLUMED-2.10.0-foss-2026.1.eb
+  - tbb-2022.3.0-GCCcore-15.2.0.eb
+  - ttyd-1.7.7-GCCcore-15.2.0.eb
+  - RStudio-Server-2026.06.0+242-foss-2026.1-R-4.6.1.eb