diff --git a/common/eth2_network_config/built_in_network_configs/prater/config.yaml b/common/eth2_network_config/built_in_network_configs/prater/config.yaml
index d337c4120..d173be20d 100644
--- a/common/eth2_network_config/built_in_network_configs/prater/config.yaml
+++ b/common/eth2_network_config/built_in_network_configs/prater/config.yaml
@@ -6,8 +6,7 @@ PRESET_BASE: 'mainnet'
 
 # Transition
 # ---------------------------------------------------------------
-# TBD, 2**256-2**10 is a placeholder
-TERMINAL_TOTAL_DIFFICULTY: 115792089237316195423570985008687907853269984665640564039457584007913129638912
+TERMINAL_TOTAL_DIFFICULTY: 10790000
 # By default, don't use these params
 TERMINAL_BLOCK_HASH: 0x0000000000000000000000000000000000000000000000000000000000000000
 TERMINAL_BLOCK_HASH_ACTIVATION_EPOCH: 18446744073709551615
@@ -35,7 +34,7 @@ ALTAIR_FORK_VERSION: 0x01001020
 ALTAIR_FORK_EPOCH: 36660
 # Merge
 BELLATRIX_FORK_VERSION: 0x02001020
-BELLATRIX_FORK_EPOCH: 18446744073709551615
+BELLATRIX_FORK_EPOCH: 112260
 # Sharding
 SHARDING_FORK_VERSION: 0x03001020
 SHARDING_FORK_EPOCH: 18446744073709551615