diff --git a/cl/clparams/config.go b/cl/clparams/config.go
index c7c6f484133..ad3c6d09cbc 100644
--- a/cl/clparams/config.go
+++ b/cl/clparams/config.go
@@ -856,7 +856,7 @@ var MainnetBeaconConfig BeaconChainConfig = BeaconChainConfig{
 	DenebForkVersion:     0x04000000,
 	DenebForkEpoch:       269568,
 	ElectraForkVersion:   0x05000000,
-	ElectraForkEpoch:     math.MaxUint64,
+	ElectraForkEpoch:     364032,
 	FuluForkVersion:      0x06000000,
 	FuluForkEpoch:        math.MaxUint64,
 
diff --git a/core/forkid/forkid_test.go b/core/forkid/forkid_test.go
index 7b8234f6eb5..5ef63452127 100644
--- a/core/forkid/forkid_test.go
+++ b/core/forkid/forkid_test.go
@@ -80,8 +80,10 @@ func TestCreation(t *testing.T) {
 				{17034869, 1681338443, ID{Hash: checksumToBytes(0xf0afd0e3), Next: 1681338455}}, // Last pre-Shanghai block
 				{17034870, 1681338479, ID{Hash: checksumToBytes(0xdce96c2d), Next: 1710338135}}, // First Shanghai block
 				{19426586, 1710338123, ID{Hash: checksumToBytes(0xdce96c2d), Next: 1710338135}}, // Last Shanghai block
-				{19426587, 1710338135, ID{Hash: checksumToBytes(0x9f3d2254), Next: 0}},          // First Cancun block
-				{20000000, 1800000000, ID{Hash: checksumToBytes(0x9f3d2254), Next: 0}},          // Future Cancun block (mock)
+				{19426587, 1710338135, ID{Hash: checksumToBytes(0x9f3d2254), Next: 1746612311}}, // First Cancun block
+				{22432453, 1746612299, ID{Hash: checksumToBytes(0x9f3d2254), Next: 1746612311}}, // Last Cancun block (approx.)
+				{22432454, 1746612311, ID{Hash: checksumToBytes(0xc376cf8b), Next: 0}},          // First Prague block (approx.)
+				{30000000, 1900000000, ID{Hash: checksumToBytes(0xc376cf8b), Next: 0}},          // Future Prague block (mock)
 			},
 		},
 		// Sepolia test cases
diff --git a/params/chainspecs/mainnet.json b/params/chainspecs/mainnet.json
index f7c485a345e..e6d1e906e4f 100644
--- a/params/chainspecs/mainnet.json
+++ b/params/chainspecs/mainnet.json
@@ -19,6 +19,7 @@
   "terminalTotalDifficultyPassed": true,
   "shanghaiTime": 1681338455,
   "cancunTime": 1710338135,
+  "pragueTime": 1746612311,
   "blobSchedule": {
     "cancun": {
       "target": 3,