diff --git a/mainnet/config.yaml b/mainnet/config.yaml
index 220aa79..5f87ee3 100644
--- a/mainnet/config.yaml
+++ b/mainnet/config.yaml
@@ -51,7 +51,7 @@ ELECTRA_FORK_VERSION: 0x05000064
 ELECTRA_FORK_EPOCH: 1337856  # 2025-04-30T14:03:40.000Z
 # Fulu
 FULU_FORK_VERSION: 0x06000064
-FULU_FORK_EPOCH: 18446744073709551615  # temporary stub
+FULU_FORK_EPOCH: 1714688  # Tue Apr 14 2026 12:06:20 GMT+0000
 
 
 # Time parameters