diff --git a/ethcore/res/instant_seal.json b/ethcore/res/instant_seal.json
index b2199ebc35a..8b0df90c479 100644
--- a/ethcore/res/instant_seal.json
+++ b/ethcore/res/instant_seal.json
@@ -38,7 +38,7 @@
 		"timestamp": "0x00",
 		"parentHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
 		"extraData": "0x",
-		"gasLimit": "0x7A1200"
+		"gasLimit": "0xBEBC20"
 	},
 	"accounts": {
 		"0000000000000000000000000000000000000001": { "balance": "1", "builtin": { "name": "ecrecover", "pricing": { "linear": { "base": 3000, "word": 0 } } } },
diff --git a/parity/cli/mod.rs b/parity/cli/mod.rs
index 6fa642deece..538bdc095f5 100644
--- a/parity/cli/mod.rs
+++ b/parity/cli/mod.rs
@@ -749,11 +749,11 @@ usage! {
 			"--price-update-period=[T]",
 			"T will be allowed to pass between each gas price update. T may be daily, hourly, a number of seconds, or a time string of the form \"2 days\", \"30 minutes\" etc..",
 
-			ARG arg_gas_floor_target: (String) = "8000000", or |c: &Config| c.mining.as_ref()?.gas_floor_target.clone(),
+			ARG arg_gas_floor_target: (String) = "12500000", or |c: &Config| c.mining.as_ref()?.gas_floor_target.clone(),
 			"--gas-floor-target=[GAS]",
 			"Amount of gas per block to target when sealing a new block.",
 
-			ARG arg_gas_cap: (String) = "10000000", or |c: &Config| c.mining.as_ref()?.gas_cap.clone(),
+			ARG arg_gas_cap: (String) = "15000000", or |c: &Config| c.mining.as_ref()?.gas_cap.clone(),
 			"--gas-cap=[GAS]",
 			"A cap on how large we will raise the gas limit per block due to transaction volume.",
 
@@ -1862,8 +1862,8 @@ mod tests {
 			arg_gas_price_percentile: 50usize,
 			arg_usd_per_eth: "auto".into(),
 			arg_price_update_period: "hourly".into(),
-			arg_gas_floor_target: "8000000".into(),
-			arg_gas_cap: "10000000".into(),
+			arg_gas_floor_target: "12500000".into(),
+			arg_gas_cap: "15000000".into(),
 			arg_extra_data: Some("Parity".into()),
 			flag_tx_queue_no_unfamiliar_locals: false,
 			flag_tx_queue_no_early_reject: false,
diff --git a/parity/cli/tests/config.full.toml b/parity/cli/tests/config.full.toml
index f58fab3d8ad..1c6de0e945d 100644
--- a/parity/cli/tests/config.full.toml
+++ b/parity/cli/tests/config.full.toml
@@ -121,8 +121,8 @@ min_gas_price = 0
 usd_per_tx = "0.0001"
 usd_per_eth = "auto"
 price_update_period = "hourly"
-gas_floor_target = "8000000"
-gas_cap = "10000000"
+gas_floor_target = "12500000"
+gas_cap = "15000000"
 tx_queue_size = 8192
 tx_queue_locals = ["0xdeadbeefcafe0000000000000000000000000000"]
 tx_queue_strategy = "gas_factor"