diff --git a/src/linkahead/common/models.py b/src/linkahead/common/models.py
index bb5bd3ccd64a94b47990d37bf86b0e3fedc21182..bcedfb7104d733bc1ac5248e8668a16549891fdc 100644
--- a/src/linkahead/common/models.py
+++ b/src/linkahead/common/models.py
@@ -91,12 +91,12 @@ class Inheritance(Enum):
     NONE = "NONE"
 
 
-OBLIGATORY = Inheritance.OBLIGATORY
-SUGGESTED = Inheritance.SUGGESTED
-RECOMMENDED = Inheritance.RECOMMENDED
-FIX = Inheritance.FIX
-ALL = Inheritance.ALL
-NONE = Inheritance.NONE
+OBLIGATORY = "OBLIGATORY"
+SUGGESTED = "SUGGESTED"
+RECOMMENDED = "RECOMMENDED"
+FIX = "FIX"
+ALL = "ALL"
+NONE = "NONE"
 
 
 SPECIAL_ATTRIBUTES = ["name", "role", "datatype", "description",