diff --git a/configs/mainnet.yaml b/configs/mainnet.yaml
index 82f98f819..6afc82e95 100644
--- a/configs/mainnet.yaml
+++ b/configs/mainnet.yaml
@@ -51,7 +51,7 @@ CAPELLA_FORK_EPOCH: 194048  # April 12, 2023, 10:27:35pm UTC
 DENEB_FORK_VERSION: 0x04000000
 DENEB_FORK_EPOCH: 269568  # March 13, 2024, 01:55:35pm UTC
 # Electra
-ELECTRA_FORK_VERSION: 0x05000001
+ELECTRA_FORK_VERSION: 0x05000000
 ELECTRA_FORK_EPOCH: 18446744073709551615
 # EIP6110
 EIP6110_FORK_VERSION: 0x06000000  # temporary stub