diff --git a/scripts/sandbox.json b/scripts/sandbox.json
index fb5ad847e..2838b3595 100644
--- a/scripts/sandbox.json
+++ b/scripts/sandbox.json
@@ -4,10 +4,15 @@
     "dictator_pubkey":
       "edpkuSLWfVU1Vq7Jg9FucPyKmma6otcMHac9zG4oU1KMHSTBpJuGQ2",
     "bootstrap_keys": [
-        "edpkuBknW28nW72KG6RoHtYW7p12T6GKc7nAbwYX5m8Wd9sDVC9yav",
-        "edpktzNbDAUjUk697W7gYg2CRuBQjyPxbEg8dLccYYwKSKvkPvjtV9",
-        "edpkuTXkJDGcFd5nh6VvMz8phXxU3Bi7h6hqgywNFi1vZTfQNnS1RV",
-        "edpkuFrRoDSEbJYgxRtLx2ps82UdaYc1WwfS9sE11yhauZt5DgCHbU",
-        "edpkv8EUUH68jmo3f7Um5PezmfGrRF24gnfLpH3sVNwJnV5bVCxL2n"
-    ]
+      "edpkuBknW28nW72KG6RoHtYW7p12T6GKc7nAbwYX5m8Wd9sDVC9yav",
+      "edpktzNbDAUjUk697W7gYg2CRuBQjyPxbEg8dLccYYwKSKvkPvjtV9",
+      "edpkuTXkJDGcFd5nh6VvMz8phXxU3Bi7h6hqgywNFi1vZTfQNnS1RV",
+      "edpkuFrRoDSEbJYgxRtLx2ps82UdaYc1WwfS9sE11yhauZt5DgCHbU",
+      "edpkv8EUUH68jmo3f7Um5PezmfGrRF24gnfLpH3sVNwJnV5bVCxL2n"
+    ],
+    "time_between_blocks" : [ 1, 0 ],
+    "blocks_per_roll_snapshot" : 4,
+    "blocks_per_cycle" : 8,
+    "preserved_cycles" : 2,
+    "first_free_baking_slot" : 4
 }