diff --git a/backend/app/core/base_crud.py b/backend/app/core/base_crud.py
index 742ecd9992239bf35023537f89daea27fba56121..c870019f24bfce8b5e9162667e1909d18ce9e7a5 100644
--- a/backend/app/core/base_crud.py
+++ b/backend/app/core/base_crud.py
@@ -338,7 +338,13 @@ class CRUDBase(Generic[ModelType, CreateSchemaType, UpdateSchemaType]):
                 elif seq == "!=" and val:
                     conditions.append(attr != val)
                 elif seq in [">", ">=", "<=", "=="] and val:
-                    conditions.append(getattr(attr, seq.replace("==", "__eq__"))(val))
+                     op_map = {
+                        ">": "__gt__",
+                        ">=": "__ge__",
+                        "<=": "__le__",
+                        "==": "__eq__"
+                    }
+                    conditions.append(getattr(attr, op_map[seq])(val))
             else:
                 conditions.append(attr == value)
         return conditions