diff --git a/core/forkid/forkid_test.go b/core/forkid/forkid_test.go
index a20598fa9d..87d64ed67f 100644
--- a/core/forkid/forkid_test.go
+++ b/core/forkid/forkid_test.go
@@ -43,26 +43,24 @@ func TestCreation(t *testing.T) {
 			params.MainnetChainConfig,
 			params.MainnetGenesisHash,
 			[]testcase{
-				{0, ID{Hash: checksumToBytes(0xfc64ec04), Next: 1150000}},         // Unsynced
-				{1149999, ID{Hash: checksumToBytes(0xfc64ec04), Next: 1150000}},   // Last Frontier block
-				{1150000, ID{Hash: checksumToBytes(0x97c2c34c), Next: 1920000}},   // First Homestead block
-				{1919999, ID{Hash: checksumToBytes(0x97c2c34c), Next: 1920000}},   // Last Homestead block
-				{1920000, ID{Hash: checksumToBytes(0x91d1f948), Next: 2463000}},   // First DAO block
-				{2462999, ID{Hash: checksumToBytes(0x91d1f948), Next: 2463000}},   // Last DAO block
-				{2463000, ID{Hash: checksumToBytes(0x7a64da13), Next: 2675000}},   // First Tangerine block
-				{2674999, ID{Hash: checksumToBytes(0x7a64da13), Next: 2675000}},   // Last Tangerine block
-				{2675000, ID{Hash: checksumToBytes(0x3edd5b10), Next: 4370000}},   // First Spurious block
-				{4369999, ID{Hash: checksumToBytes(0x3edd5b10), Next: 4370000}},   // Last Spurious block
-				{4370000, ID{Hash: checksumToBytes(0xa00bc324), Next: 7280000}},   // First Byzantium block
-				{7279999, ID{Hash: checksumToBytes(0xa00bc324), Next: 7280000}},   // Last Byzantium block
-				{7280000, ID{Hash: checksumToBytes(0x668db0af), Next: 9069000}},   // First and last Constantinople, first Petersburg block
-				{9068999, ID{Hash: checksumToBytes(0x668db0af), Next: 9069000}},   // Last Petersburg block
-				{9069000, ID{Hash: checksumToBytes(0x879d6e30), Next: 9200000}},   // First Istanbul and first Muir Glacier block
-				{9199999, ID{Hash: checksumToBytes(0x879d6e30), Next: 9200000}},   // Last Istanbul and first Muir Glacier block
-				{9200000, ID{Hash: checksumToBytes(0xe029e991), Next: 12244000}},  // First Muir Glacier block
-				{12243999, ID{Hash: checksumToBytes(0xe029e991), Next: 12244000}}, // Last Muir Glacier block
-				{12244000, ID{Hash: checksumToBytes(0x0eb440f6), Next: 0}},        // First Berlin block
-				{20000000, ID{Hash: checksumToBytes(0x0eb440f6), Next: 0}},        // Future Berlin block
+				{0, ID{Hash: checksumToBytes(0xfc64ec04), Next: 1150000}},       // Unsynced
+				{1149999, ID{Hash: checksumToBytes(0xfc64ec04), Next: 1150000}}, // Last Frontier block
+				{1150000, ID{Hash: checksumToBytes(0x97c2c34c), Next: 1920000}}, // First Homestead block
+				{1919999, ID{Hash: checksumToBytes(0x97c2c34c), Next: 1920000}}, // Last Homestead block
+				{1920000, ID{Hash: checksumToBytes(0x91d1f948), Next: 2463000}}, // First DAO block
+				{2462999, ID{Hash: checksumToBytes(0x91d1f948), Next: 2463000}}, // Last DAO block
+				{2463000, ID{Hash: checksumToBytes(0x7a64da13), Next: 2675000}}, // First Tangerine block
+				{2674999, ID{Hash: checksumToBytes(0x7a64da13), Next: 2675000}}, // Last Tangerine block
+				{2675000, ID{Hash: checksumToBytes(0x3edd5b10), Next: 4370000}}, // First Spurious block
+				{4369999, ID{Hash: checksumToBytes(0x3edd5b10), Next: 4370000}}, // Last Spurious block
+				{4370000, ID{Hash: checksumToBytes(0xa00bc324), Next: 7280000}}, // First Byzantium block
+				{7279999, ID{Hash: checksumToBytes(0xa00bc324), Next: 7280000}}, // Last Byzantium block
+				{7280000, ID{Hash: checksumToBytes(0x668db0af), Next: 9069000}}, // First and last Constantinople, first Petersburg block
+				{9068999, ID{Hash: checksumToBytes(0x668db0af), Next: 9069000}}, // Last Petersburg block
+				{9069000, ID{Hash: checksumToBytes(0x879d6e30), Next: 9200000}}, // First Istanbul and first Muir Glacier block
+				{9199999, ID{Hash: checksumToBytes(0x879d6e30), Next: 9200000}}, // Last Istanbul and first Muir Glacier block
+				{9200000, ID{Hash: checksumToBytes(0xe029e991), Next: 0}},       // First Muir Glacier block
+				{12243999, ID{Hash: checksumToBytes(0xe029e991), Next: 0}},      // Future Muir Glacier block
 			},
 		},
 		// Ropsten test cases
@@ -82,10 +80,8 @@ func TestCreation(t *testing.T) {
 				{6485845, ID{Hash: checksumToBytes(0xd6e2149b), Next: 6485846}}, // Last Petersburg block
 				{6485846, ID{Hash: checksumToBytes(0x4bc66396), Next: 7117117}}, // First Istanbul block
 				{7117116, ID{Hash: checksumToBytes(0x4bc66396), Next: 7117117}}, // Last Istanbul block
-				{7117117, ID{Hash: checksumToBytes(0x6727ef90), Next: 9812189}}, // First Muir Glacier block
-				{9812188, ID{Hash: checksumToBytes(0x6727ef90), Next: 9812189}}, // Last Muir Glacier block
-				{9812189, ID{Hash: checksumToBytes(0xa157d377), Next: 0}},       // First Berlin block
-				{10000000, ID{Hash: checksumToBytes(0xa157d377), Next: 0}},      // Future Berlin block
+				{7117117, ID{Hash: checksumToBytes(0x6727ef90), Next: 0}},       // First Muir Glacier block
+				{9812188, ID{Hash: checksumToBytes(0x6727ef90), Next: 0}},       // Future Muir Glacier block
 			},
 		},
 		// Rinkeby test cases
@@ -104,10 +100,8 @@ func TestCreation(t *testing.T) {
 				{4321233, ID{Hash: checksumToBytes(0xe49cab14), Next: 4321234}}, // Last Constantinople block
 				{4321234, ID{Hash: checksumToBytes(0xafec6b27), Next: 5435345}}, // First Petersburg block
 				{5435344, ID{Hash: checksumToBytes(0xafec6b27), Next: 5435345}}, // Last Petersburg block
-				{5435345, ID{Hash: checksumToBytes(0xcbdb8838), Next: 8290928}}, // First Istanbul block
-				{8290927, ID{Hash: checksumToBytes(0xcbdb8838), Next: 8290928}}, // Last Istanbul block
-				{8290928, ID{Hash: checksumToBytes(0x6910c8bd), Next: 0}},       // First Berlin block
-				{10000000, ID{Hash: checksumToBytes(0x6910c8bd), Next: 0}},      // Future Berlin block
+				{5435345, ID{Hash: checksumToBytes(0xcbdb8838), Next: 0}},       // First Istanbul block
+				{8290927, ID{Hash: checksumToBytes(0xcbdb8838), Next: 0}},       // Future Istanbul block
 			},
 		},
 		// Goerli test cases
@@ -117,10 +111,8 @@ func TestCreation(t *testing.T) {
 			[]testcase{
 				{0, ID{Hash: checksumToBytes(0xa3f5ab08), Next: 1561651}},       // Unsynced, last Frontier, Homestead, Tangerine, Spurious, Byzantium, Constantinople and first Petersburg block
 				{1561650, ID{Hash: checksumToBytes(0xa3f5ab08), Next: 1561651}}, // Last Petersburg block
-				{1561651, ID{Hash: checksumToBytes(0xc25efa5c), Next: 4460644}}, // First Istanbul block
-				{4460643, ID{Hash: checksumToBytes(0xc25efa5c), Next: 4460644}}, // Last Istanbul block
-				{4460644, ID{Hash: checksumToBytes(0x757a1c47), Next: 0}},       // First Berlin block
-				{5000000, ID{Hash: checksumToBytes(0x757a1c47), Next: 0}},       // Future Berlin block
+				{1561651, ID{Hash: checksumToBytes(0xc25efa5c), Next: 0}},       // First Istanbul block
+				{4460643, ID{Hash: checksumToBytes(0xc25efa5c), Next: 0}},       // Future Istanbul block
 			},
 		},
 	}
@@ -193,7 +185,7 @@ func TestValidation(t *testing.T) {
 		// Local is mainnet Petersburg, remote is Rinkeby Petersburg.
 		{7987396, ID{Hash: checksumToBytes(0xafec6b27), Next: 0}, ErrLocalIncompatibleOrStale},
 
-		// Local is mainnet Berlin, far in the future. Remote announces Gopherium (non existing fork)
+		// Local is mainnet Istanbul, far in the future. Remote announces Gopherium (non existing fork)
 		// at some future block 88888888, for itself, but past block for local. Local is incompatible.
 		//
 		// This case detects non-upgraded nodes with majority hash power (typical Ropsten mess).
diff --git a/params/config.go b/params/config.go
index 8f8b36b57d..9b8c5cf4ed 100644
--- a/params/config.go
+++ b/params/config.go
@@ -68,7 +68,6 @@ var (
 		PetersburgBlock:     big.NewInt(7_280_000),
 		IstanbulBlock:       big.NewInt(9_069_000),
 		MuirGlacierBlock:    big.NewInt(9_200_000),
-		BerlinBlock:         big.NewInt(12_244_000),
 		Ethash:              new(EthashConfig),
 	}
 
@@ -108,7 +107,6 @@ var (
 		PetersburgBlock:     big.NewInt(4_939_394),
 		IstanbulBlock:       big.NewInt(6_485_846),
 		MuirGlacierBlock:    big.NewInt(7_117_117),
-		BerlinBlock:         big.NewInt(9_812_189),
 		Ethash:              new(EthashConfig),
 	}
 
@@ -148,7 +146,6 @@ var (
 		PetersburgBlock:     big.NewInt(4_321_234),
 		IstanbulBlock:       big.NewInt(5_435_345),
 		MuirGlacierBlock:    nil,
-		BerlinBlock:         big.NewInt(8_290_928),
 		Clique: &CliqueConfig{
 			Period: 15,
 			Epoch:  30000,
@@ -189,7 +186,6 @@ var (
 		PetersburgBlock:     big.NewInt(0),
 		IstanbulBlock:       big.NewInt(1_561_651),
 		MuirGlacierBlock:    nil,
-		BerlinBlock:         big.NewInt(4_460_644),
 		Clique: &CliqueConfig{
 			Period: 15,
 			Epoch:  30000,