danielgtaylor
diff --git a/‎poetry.lock
+141-50 b/‎poetry.lock
+141-50
diff --git a/‎pyproject.toml
+1-1 b/‎pyproject.toml
+1-1
diff --git a/‎src/betterproto/__init__.py
+3-1 b/‎src/betterproto/__init__.py
+3-1
@@ -39,7 +39,7 @@ pytest = "^6.2.5"
 pytest-asyncio = "^0.12.0"
 pytest-cov = "^2.9.0"
 pytest-mock = "^3.1.1"
-pydantic = ">=1.10.16,<2"
+pydantic = ">=2.0,<3"
 protobuf = "^4"
 cachelib = "^0.10.2"
 tomlkit = ">=0.7.0"
 
@@ -1852,7 +1852,9 @@ def _validate_field_groups(cls, values):
                     continue
 
             set_fields = [
-                field.name for field in field_set if values[field.name] is not None
+                field.name
+                for field in field_set
+                if getattr(values, field.name, None) is not None
             ]
 
             if not set_fields:
Original file line number	Diff line number	Diff line change
`@@ -1852,7 +1852,9 @@ def _validate_field_groups(cls, values):`
`1852`	`1852`	`continue`
`1853`	`1853`
`1854`	`1854`	`set_fields = [`
`1855`		`- field.name for field in field_set if values[field.name] is not None`
	`1855`	`+ field.name`
	`1856`	`+ for field in field_set`
	`1857`	`+ if getattr(values, field.name, None) is not None`
`1856`	`1858`	`]`
`1857`	`1859`
`1858`	`1860`	`if not set_fields:`