diff --git a/pfbudget/__main__.py b/pfbudget/__main__.py
index 3785629..1348ca9 100644
--- a/pfbudget/__main__.py
+++ b/pfbudget/__main__.py
@@ -69,6 +69,27 @@ if __name__ == "__main__":
             assert args.keys() >= {"id"}, "argparser ill defined"
             params = args["id"]
 
+        case pfbudget.Operation.RuleModify:
+            assert args.keys() >= {
+                "id",
+                "category",
+                "date",
+                "description",
+                "bank",
+                "min",
+                "max",
+                "remove",
+            }, "argparser ill defined"
+
+            nargs_1 = ["category", "date", "description", "regex", "bank", "min", "max"]
+            params = []
+            for id in args["id"]:
+                param = {"id": id}
+                param |= {k: v[0] for k, v in args.items() if k in nargs_1 and args[k]}
+                param |= {k: None for k in args["remove"] if k in nargs_1}
+
+                params.append(param)
+
         case pfbudget.Operation.GroupAdd:
             assert "group" in args, "argparser ill defined"
             params = [pfbudget.types.CategoryGroup(group) for group in args["group"]]
diff --git a/pfbudget/cli/runnable.py b/pfbudget/cli/runnable.py
index ebe2504..3a44494 100644
--- a/pfbudget/cli/runnable.py
+++ b/pfbudget/cli/runnable.py
@@ -377,6 +377,18 @@ def category_rule(parser: argparse.ArgumentParser, universal: argparse.ArgumentP
     remove.set_defaults(op=Operation.RuleRemove)
     remove.add_argument("id", nargs="+", type=int)
 
+    modify = commands.add_parser("modify", parents=[universal])
+    modify.set_defaults(op=Operation.RuleModify)
+    modify.add_argument("id", nargs="+", type=int)
+    modify.add_argument("--category", nargs=1, type=str)
+    modify.add_argument("--date", nargs=1, type=dt.date.fromisoformat)
+    modify.add_argument("--description", nargs=1, type=str)
+    modify.add_argument("--regex", nargs=1, type=str)
+    modify.add_argument("--bank", nargs=1, type=str)
+    modify.add_argument("--min", nargs=1, type=decimal.Decimal)
+    modify.add_argument("--max", nargs=1, type=decimal.Decimal)
+    modify.add_argument("--remove", nargs="*", default=[], type=str)
+
 
 def run():
     args = vars(argparser().parse_args())
diff --git a/pfbudget/common/types.py b/pfbudget/common/types.py
index b090bbb..c8f39d4 100644
--- a/pfbudget/common/types.py
+++ b/pfbudget/common/types.py
@@ -19,6 +19,7 @@ class Operation(Enum):
     CategorySchedule = auto()
     RuleAdd = auto()
     RuleRemove = auto()
+    RuleModify = auto()
     GroupAdd = auto()
     GroupRemove = auto()
 
diff --git a/pfbudget/core/manager.py b/pfbudget/core/manager.py
index b4e6344..2597ea1 100644
--- a/pfbudget/core/manager.py
+++ b/pfbudget/core/manager.py
@@ -74,6 +74,11 @@ class Manager:
                 with self.db.session() as session:
                     session.removerules(params)
 
+            case Operation.RuleModify:
+                assert all(isinstance(param, dict) for param in params)
+                with self.db.session() as session:
+                    session.updaterules(params)
+
             case Operation.GroupAdd:
                 with self.db.session() as session:
                     session.addgroups(CategoryGroup(params))
diff --git a/pfbudget/db/client.py b/pfbudget/db/client.py
index 67dbd19..175fa67 100644
--- a/pfbudget/db/client.py
+++ b/pfbudget/db/client.py
@@ -117,11 +117,12 @@ class DbClient:
             self.__session.add_all(rules)
 
         def removerules(self, ids: list[int]):
-            stmt = delete(CategoryRule).where(
-                CategoryRule.id.in_(ids)
-            )
+            stmt = delete(CategoryRule).where(CategoryRule.id.in_(ids))
             self.__session.execute(stmt)
 
+        def updaterules(self, rules: list[dict]):
+            self.__session.execute(update(CategoryRule), rules)
+
         def addgroups(self, groups: list[CategoryGroup]):
             self.__session.add_all(groups)
 
diff --git a/pfbudget/db/model.py b/pfbudget/db/model.py
index 0a76846..4384cd6 100644
--- a/pfbudget/db/model.py
+++ b/pfbudget/db/model.py
@@ -114,7 +114,7 @@ class Category(Base):
     )
 
     rules: Mapped[Optional[set[CategoryRule]]] = relationship(
-        cascade="all, delete-orphan", passive_deletes=True, default=None
+        cascade="all, delete-orphan", passive_deletes=True, default_factory=set
     )
     schedule: Mapped[CategorySchedule] = relationship(
         back_populates="category", default=None