diff --git a/requirements.txt b/requirements.txt
index 7d17202f..cdc970d7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-emmet-core==0.26.2
+emmet-core==0.27.5
 pydantic>=1.8.2
 pymatgen>=2022.3.7
 typing-extensions==4.1.1
diff --git a/setup.py b/setup.py
index 3d3766b0..27306f02 100644
--- a/setup.py
+++ b/setup.py
@@ -28,7 +28,7 @@
         "typing-extensions>=3.7.4.1",
         "requests>=2.23.0",
         "monty>=2021.3.12",
-        "emmet-core>=0.26.2",
+        "emmet-core>=0.27.5",
         "maggma>=0.46.0",
         "mpcontribs-client",
     ],
diff --git a/src/mp_api/routes/molecules.py b/src/mp_api/routes/molecules.py
index a2ebd18b..f2157ce3 100644
--- a/src/mp_api/routes/molecules.py
+++ b/src/mp_api/routes/molecules.py
@@ -4,7 +4,7 @@
 from pymatgen.core.periodic_table import Element
 
 from mp_api.core.client import BaseRester
-from emmet.core.molecules_old import MoleculesDoc
+from emmet.core.molecules_jcesr import MoleculesDoc
 
 
 class MoleculesRester(BaseRester[MoleculesDoc]):