diff --git a/troposphere/lookoutmetrics.py b/troposphere/lookoutmetrics.py
index 3d40c8b94..711f8e037 100644
--- a/troposphere/lookoutmetrics.py
+++ b/troposphere/lookoutmetrics.py
@@ -4,11 +4,13 @@
 # See LICENSE file for full license.
 #
 # *** Do not modify - this file is autogenerated ***
-# Resource specification version: 31.2.0
+# Resource specification version: 35.0.0
 
 
-from . import AWSObject, AWSProperty
-from .validators import boolean, integer
+from . import AWSObject
+from . import AWSProperty
+from .validators import boolean
+from .validators import integer
 
 
 class Alert(AWSObject):
@@ -44,22 +46,10 @@ class CloudwatchConfig(AWSProperty):
     }
 
 
-class SecurityGroupIdList(AWSProperty):
-    props = {
-        "SecurityGroupIdList": ([str], False),
-    }
-
-
-class SubnetIdList(AWSProperty):
-    props = {
-        "SubnetIdList": ([str], False),
-    }
-
-
 class VpcConfiguration(AWSProperty):
     props = {
-        "SecurityGroupIdList": (SecurityGroupIdList, True),
-        "SubnetIdList": (SubnetIdList, True),
+        "SecurityGroupIdList": ([str], True),
+        "SubnetIdList": ([str], True),
     }