diff --git a/crates/ethcore/res/chainspec/foundation.json b/crates/ethcore/res/chainspec/foundation.json
index 75f2a7ea4..4aa98c0e5 100644
--- a/crates/ethcore/res/chainspec/foundation.json
+++ b/crates/ethcore/res/chainspec/foundation.json
@@ -172,14 +172,7 @@
 		"eip1884Transition": "0x8a61c8",
 		"eip2028Transition": "0x8a61c8",
 		"eip2929Transition": "0xbad420",
-		"eip2930Transition": "0xbad420",
-		"eip1559Transition": "0xc3d0e8",
-		"eip3198Transition": "0xc3d0e8",
-		"eip3541Transition": "0xc3d0e8",
-		"eip3529Transition": "0xc3d0e8",
-		"eip1559BaseFeeMaxChangeDenominator": "0x8",
-		"eip1559ElasticityMultiplier": "0x2",
-		"eip1559BaseFeeInitialValue": "0x3B9ACA00"
+		"eip2930Transition": "0xbad420"
 	},
 	"genesis": {
 		"seal": {
diff --git a/crates/ethcore/res/json_tests b/crates/ethcore/res/json_tests
index fa0ab110f..5d651381d 160000
--- a/crates/ethcore/res/json_tests
+++ b/crates/ethcore/res/json_tests
@@ -1 +1 @@
-Subproject commit fa0ab110f3f45d1f6786f978ea596a18ecbe8275
+Subproject commit 5d651381daf9d12cc663a7326b3b16d7bb4c1aa0
diff --git a/crates/ethcore/src/spec/genesis.rs b/crates/ethcore/src/spec/genesis.rs
index ef1df70ee..127ffd531 100644
--- a/crates/ethcore/src/spec/genesis.rs
+++ b/crates/ethcore/src/spec/genesis.rs
@@ -65,7 +65,7 @@ impl From<ethjson::spec::Genesis> for Genesis {
             state_root: g.state_root.map(Into::into),
             gas_used: g.gas_used.map_or_else(U256::zero, Into::into),
             extra_data: g.extra_data.map_or_else(Vec::new, Into::into),
-            base_fee: g.base_fee.map(Into::into),
+            base_fee: g.base_fee_per_gas.map(Into::into),
         }
     }
 }
diff --git a/crates/ethjson/src/blockchain/blockchain.rs b/crates/ethjson/src/blockchain/blockchain.rs
index ae4e3f975..76b97692c 100644
--- a/crates/ethjson/src/blockchain/blockchain.rs
+++ b/crates/ethjson/src/blockchain/blockchain.rs
@@ -89,7 +89,7 @@ impl BlockChain {
             state_root: Some(self.genesis_block.state_root.clone()),
             gas_used: Some(self.genesis_block.gas_used),
             extra_data: Some(self.genesis_block.extra_data.clone()),
-            base_fee: self.genesis_block.base_fee,
+            base_fee_per_gas: self.genesis_block.base_fee_per_gas,
         }
     }
 }
diff --git a/crates/ethjson/src/blockchain/header.rs b/crates/ethjson/src/blockchain/header.rs
index 1b32b40a6..4f61dca43 100644
--- a/crates/ethjson/src/blockchain/header.rs
+++ b/crates/ethjson/src/blockchain/header.rs
@@ -63,7 +63,7 @@ pub struct Header {
     #[serde(rename = "uncleHash")]
     pub uncles_hash: H256,
     /// Base fee
-    pub base_fee: Option<Uint>,
+    pub base_fee_per_gas: Option<Uint>,
 }
 
 #[cfg(test)]
diff --git a/crates/ethjson/src/spec/genesis.rs b/crates/ethjson/src/spec/genesis.rs
index 312deef0a..19b7205c4 100644
--- a/crates/ethjson/src/spec/genesis.rs
+++ b/crates/ethjson/src/spec/genesis.rs
@@ -52,7 +52,7 @@ pub struct Genesis {
     /// Extra data.
     pub extra_data: Option<Bytes>,
     /// Base fee.
-    pub base_fee: Option<Uint>,
+    pub base_fee_per_gas: Option<Uint>,
 }
 
 #[cfg(test)]
@@ -124,7 +124,7 @@ mod tests {
                     )
                     .unwrap()
                 ),
-                base_fee: None,
+                base_fee_per_gas: None,
             }
         );
     }