diff --git a/easystacks/software.eessi.io/2023.06/grace/eessi-2023.06-eb-4.9.0-2023a.yml b/easystacks/software.eessi.io/2023.06/grace/eessi-2023.06-eb-4.9.0-2023a.yml
new file mode 100644
index 0000000000..fa1b9b388e
--- /dev/null
+++ b/easystacks/software.eessi.io/2023.06/grace/eessi-2023.06-eb-4.9.0-2023a.yml
@@ -0,0 +1,4 @@
+easyconfigs:
+#This is an outdated version of the Z3-4.12.2-GCCcore-12.3.0 easyconfig, adding it to keep sync with the other stacks
+#see https://github.com/easybuilders/easybuild-easyconfigs/pull/20050
+  - Z3-4.12.2-GCCcore-12.3.0-Python-3.11.3.eb