diff --git a/kiln/devnets/mainnetshadow-4.vars b/kiln/devnets/mainnetshadow-5.vars
similarity index 94%
rename from kiln/devnets/mainnetshadow-4.vars
rename to kiln/devnets/mainnetshadow-5.vars
index 024cd82d31f1..93aabd6b50c4 100644
--- a/kiln/devnets/mainnetshadow-4.vars
+++ b/kiln/devnets/mainnetshadow-5.vars
@@ -1,7 +1,7 @@
-DEVNET_NAME=mainnet-shadow-fork-4
-CONFIG_GIT_DIR=mainnet-shadow-fork-4
+DEVNET_NAME=mainnet-shadow-fork-5
+CONFIG_GIT_DIR=mainnet-shadow-fork-5
 NETWORK_ID=1
-MERGE_TTD=48778882162404829954048
+MERGE_TTD=49407055721335634264064
 
 JWT_SECRET="0xdc6457099f127cf0bac78de8b297df04951281909db4f58b43def7c7151e765d"