diff --git a/fuzzers/074-dump_all/generate_grid.py b/fuzzers/074-dump_all/generate_grid.py
index 32f78ec6..bb90476b 100644
--- a/fuzzers/074-dump_all/generate_grid.py
+++ b/fuzzers/074-dump_all/generate_grid.py
@@ -605,6 +605,13 @@ def main():
         tileconn, raw_node_data = generate_tileconn(
             pool, node_tree, nodes, wire_map, grid)
 
+        for data in tileconn:
+            data['wire_pairs'] = tuple(sorted(data['wire_pairs']))
+
+        tileconn = tuple(
+            sorted(
+                tileconn, key=lambda x: (x['tile_types'], x['grid_deltas'])))
+
         print('{} Writing tileconn'.format(datetime.datetime.now()))
         with open(tileconn_file, 'w') as f:
             json.dump(tileconn, f, indent=2, sort_keys=True)
diff --git a/fuzzers/074-dump_all/reduce_tile_types.py b/fuzzers/074-dump_all/reduce_tile_types.py
index f99b16bc..5b73460d 100644
--- a/fuzzers/074-dump_all/reduce_tile_types.py
+++ b/fuzzers/074-dump_all/reduce_tile_types.py
@@ -365,6 +365,10 @@ def main():
                         tile_type, site_types[site_type]['type'])), 'w') as f:
                 json.dump(site_types[site_type], f, indent=2, sort_keys=True)
 
+        reduced_tile['sites'] = sorted(
+            reduced_tile['sites'],
+            key=lambda site: '{}_{}'.format(site['name'], site['prefix']))
+
         with open(tile_type_file, 'w') as f:
             json.dump(reduced_tile, f, indent=2, sort_keys=True)
 
diff --git a/minitests/roi_harness/create_design_json.py b/minitests/roi_harness/create_design_json.py
index ac336fa5..0c5e8770 100644
--- a/minitests/roi_harness/create_design_json.py
+++ b/minitests/roi_harness/create_design_json.py
@@ -11,7 +11,7 @@ from prjxray.util import get_db_root, get_part
 def set_port_wires(ports, name, pin, wires_outside_roi):
     for port in ports:
         if name == port['name']:
-            port['wires_outside_roi'] = wires_outside_roi
+            port['wires_outside_roi'] = sorted(wires_outside_roi)
             assert port['pin'] == pin
             return
 
@@ -104,8 +104,11 @@ def main():
         if not_in_roi:
             required_features.append(fasm_line)
 
-    design_json['required_features'] = fasm.fasm_tuple_to_string(
-        required_features, canonical=True).split('\n')
+    design_json['required_features'] = sorted(
+        fasm.fasm_tuple_to_string(required_features,
+                                  canonical=True).split('\n'))
+
+    design_json['ports'].sort(key=lambda x: x['name'])
 
     xjson.pprint(sys.stdout, design_json)
 
diff --git a/utils/xjson.py b/utils/xjson.py
index 43be703e..03be3ace 100755
--- a/utils/xjson.py
+++ b/utils/xjson.py
@@ -87,9 +87,9 @@ def sort(data):
                 return new_dict
 
             elif isinstance(o, set):
-                return tuple(sorted(o, key=key))
+                return tuple(sorted((rsorter(v) for v in o), key=key))
             elif isinstance(o, (tuple, list)):
-                return tuple(o)
+                return tuple(rsorter(v) for v in o)
             else:
                 return o