diff --git a/src/crewai/crews/crew_output.py b/src/crewai/crews/crew_output.py
index 4d16cbc5d..125766a0b 100644
--- a/src/crewai/crews/crew_output.py
+++ b/src/crewai/crews/crew_output.py
@@ -27,19 +27,7 @@ class CrewOutput(BaseModel):
     )
     token_usage: UsageMetrics = Field(description="Processed token summary", default={})
 
-    def json(
-        self,
-        *,
-        include: Optional[IncEx] = None,
-        exclude: Optional[IncEx] = None,
-        by_alias: bool = False,
-        exclude_unset: bool = False,
-        exclude_defaults: bool = False,
-        exclude_none: bool = False,
-        encoder: Optional[Callable[[Any], Any]] = None,
-        models_as_dict: bool = True,
-        **dumps_kwargs: Any,
-    ) -> str:
+    def model_json(self) -> str:
         """Get the JSON representation of the output."""
         if self.tasks_output and self.tasks_output[-1].output_format != OutputFormat.JSON:
             raise ValueError(
@@ -53,24 +41,28 @@ class CrewOutput(BaseModel):
         indent: Optional[int] = None,
         include: Optional[IncEx] = None,
         exclude: Optional[IncEx] = None,
+        context: Optional[Any] = None,
         by_alias: bool = False,
         exclude_unset: bool = False,
         exclude_defaults: bool = False,
         exclude_none: bool = False,
         round_trip: bool = False,
         warnings: bool | Literal["none", "warn", "error"] = False,
+        serialize_as_any: bool = False,
     ) -> str:
         """Override model_dump_json to handle custom JSON output."""
         return super().model_dump_json(
             indent=indent,
             include=include,
             exclude=exclude,
+            context=context,
             by_alias=by_alias,
             exclude_unset=exclude_unset,
             exclude_defaults=exclude_defaults,
             exclude_none=exclude_none,
             round_trip=round_trip,
             warnings=warnings,
+            serialize_as_any=serialize_as_any,
         )
 
     def to_dict(self) -> Dict[str, Any]:
diff --git a/src/crewai/tasks/task_output.py b/src/crewai/tasks/task_output.py
index 5a1444a49..39017c5be 100644
--- a/src/crewai/tasks/task_output.py
+++ b/src/crewai/tasks/task_output.py
@@ -38,19 +38,7 @@ class TaskOutput(BaseModel):
         self.summary = f"{excerpt}..."
         return self
 
-    def json(
-        self,
-        *,
-        include: Optional[IncEx] = None,
-        exclude: Optional[IncEx] = None,
-        by_alias: bool = False,
-        exclude_unset: bool = False,
-        exclude_defaults: bool = False,
-        exclude_none: bool = False,
-        encoder: Optional[Callable[[Any], Any]] = None,
-        models_as_dict: bool = True,
-        **dumps_kwargs: Any,
-    ) -> str:
+    def model_json(self) -> str:
         """Get the JSON representation of the output."""
         if self.output_format != OutputFormat.JSON:
             raise ValueError(
@@ -68,24 +56,28 @@ class TaskOutput(BaseModel):
         indent: Optional[int] = None,
         include: Optional[IncEx] = None,
         exclude: Optional[IncEx] = None,
+        context: Optional[Any] = None,
         by_alias: bool = False,
         exclude_unset: bool = False,
         exclude_defaults: bool = False,
         exclude_none: bool = False,
         round_trip: bool = False,
         warnings: bool | Literal["none", "warn", "error"] = False,
+        serialize_as_any: bool = False,
     ) -> str:
         """Override model_dump_json to handle custom JSON output."""
         return super().model_dump_json(
             indent=indent,
             include=include,
             exclude=exclude,
+            context=context,
             by_alias=by_alias,
             exclude_unset=exclude_unset,
             exclude_defaults=exclude_defaults,
             exclude_none=exclude_none,
             round_trip=round_trip,
             warnings=warnings,
+            serialize_as_any=serialize_as_any,
         )
 
     def to_dict(self) -> Dict[str, Any]: