diff --git a/src/meshcore_api/api/schemas.py b/src/meshcore_api/api/schemas.py
index e23297c..d1f3e41 100644
--- a/src/meshcore_api/api/schemas.py
+++ b/src/meshcore_api/api/schemas.py
@@ -3,7 +3,7 @@
 from datetime import datetime
 from typing import List, Literal, Optional, Union
 
-from pydantic import BaseModel, Field, ValidationInfo, field_validator
+from pydantic import BaseModel, ConfigDict, Field, ValidationInfo, field_validator
 
 # ============================================================================
 # Common/Shared Schemas
@@ -41,8 +41,7 @@ class NodeResponse(BaseModel):
     created_at: datetime
     tags: dict = Field(default_factory=dict, description="Node tags as key-value pairs")
 
-    class Config:
-        from_attributes = True
+    model_config = ConfigDict(from_attributes=True)
 
 
 class NodeListResponse(BaseModel):
@@ -75,8 +74,7 @@ class MessageResponse(BaseModel):
     sender_timestamp: Optional[datetime] = None
     received_at: datetime
 
-    class Config:
-        from_attributes = True
+    model_config = ConfigDict(from_attributes=True)
 
 
 class MessageListResponse(BaseModel):
@@ -126,8 +124,7 @@ class AdvertisementResponse(BaseModel):
     flags: Optional[int] = None
     received_at: datetime
 
-    class Config:
-        from_attributes = True
+    model_config = ConfigDict(from_attributes=True)
 
 
 class AdvertisementListResponse(BaseModel):
@@ -170,8 +167,7 @@ class TracePathResponse(BaseModel):
     hop_count: Optional[int] = None
     completed_at: datetime
 
-    class Config:
-        from_attributes = True
+    model_config = ConfigDict(from_attributes=True)
 
 
 class TracePathListResponse(BaseModel):
@@ -203,8 +199,7 @@ class TelemetryResponse(BaseModel):
     parsed_data: Optional[str] = None
     received_at: datetime
 
-    class Config:
-        from_attributes = True
+    model_config = ConfigDict(from_attributes=True)
 
 
 class TelemetryListResponse(BaseModel):
@@ -241,8 +236,7 @@ class SignalStrengthResponse(BaseModel):
     trace_path_id: Optional[int] = None
     recorded_at: datetime
 
-    class Config:
-        from_attributes = True
+    model_config = ConfigDict(from_attributes=True)
 
 
 class SignalStrengthListResponse(BaseModel):
diff --git a/tests/unit/test_signal_strength.py b/tests/unit/test_signal_strength.py
index 9a1d854..1ef4e0b 100644
--- a/tests/unit/test_signal_strength.py
+++ b/tests/unit/test_signal_strength.py
@@ -219,9 +219,7 @@ def test_query_by_trace_path_id(self, db_engine):
 
         with db_engine.session_scope() as session:
             records = (
-                session.query(SignalStrength)
-                .filter(SignalStrength.trace_path_id == 100)
-                .all()
+                session.query(SignalStrength).filter(SignalStrength.trace_path_id == 100).all()
             )
             assert len(records) == 2