diff --git a/.github/workflows/post-process.yml b/.github/workflows/post-process.yml
index fa77f62c..90f770cc 100644
--- a/.github/workflows/post-process.yml
+++ b/.github/workflows/post-process.yml
@@ -29,6 +29,6 @@ jobs:
       - # It is often a desired behavior to merge only when a workflow execution
         # succeeds. This can be changed as needed.
         if: ${{ github.event.workflow_run.conclusion == 'success' }}
-        uses: rymndhng/release-on-push-action@v0.20.0
+        uses: rymndhng/release-on-push-action@v0.23.1
         with:
           bump_version_scheme: norelease
diff --git a/src/rxn_network/thermo/chempot_diagram.py b/src/rxn_network/thermo/chempot_diagram.py
index a60bc15f..6dcf4675 100644
--- a/src/rxn_network/thermo/chempot_diagram.py
+++ b/src/rxn_network/thermo/chempot_diagram.py
@@ -189,6 +189,11 @@ def _get_metastable_domains(self):
             formula = e.composition.reduced_formula
             new_entry = e_set.get_stabilized_entry(e)
             cpd = ChemicalPotentialDiagram(list(e_dict.values()) + [new_entry])
-            metastable_domains[formula] = cpd.domains[formula]
+
+            try:
+                metastable_domains[formula] = cpd.domains[formula]
+            except KeyError:
+                print(e.composition.reduced_formula)
+                continue
 
         return metastable_domains