diff --git a/emmet-core/emmet/core/provenance.py b/emmet-core/emmet/core/provenance.py
index 86070de24f..ba83d0f896 100644
--- a/emmet-core/emmet/core/provenance.py
+++ b/emmet-core/emmet/core/provenance.py
@@ -5,7 +5,8 @@
 
 from monty.json import MontyDecoder
 from pybtex.database import BibliographyData, parse_string
-from pydantic import BaseModel, EmailStr, Field, validator
+from pybtex.errors import set_strict_mode
+from pydantic import BaseModel, Field, root_validator, validator
 
 from emmet.core.material_property import PropertyDoc
 from emmet.core.mpid import MPID
@@ -126,6 +127,7 @@ def from_SNLs(
         refs = {}
         for snl in snls:
             try:
+                set_strict_mode(False)
                 entries = parse_string(snl["about"]["references"], bib_format="bibtex")
                 refs.update(entries.entries)
             except Exception: