Add upper constraint on toolkit
@@ -29,7 +29,7 @@ requirements:
- click-option-group
- rdkit
- openff-utilities
- - openff-toolkit-base >=0.10.0
+ - openff-toolkit-base >=0.10.0,<0.11.0a0
- openff-forcefields
- openff-qcsubmit
- openmm >=7.6.0
