diff --git a/src/Chainweb/Version.hs b/src/Chainweb/Version.hs
index 5205afec3a..018ff92002 100644
--- a/src/Chainweb/Version.hs
+++ b/src/Chainweb/Version.hs
@@ -778,6 +778,9 @@ coinV2Upgrade Mainnet01 cid h
     | cid == unsafeChainId 8 = h == 140808
     | cid == unsafeChainId 9 = h == 140808
     | otherwise = error $ "invalid chain id " <> sshow cid
+coinV2Upgrade Testnet04 cid h
+    | chainIdInt @Int cid >= 10  && chainIdInt @Int cid < 20 = h == 337000
+    | otherwise = h == 1
 coinV2Upgrade Development cid h
     | cid == unsafeChainId 0 = h == 3
     | otherwise = h == 4
@@ -915,4 +918,3 @@ oldDaGuard Mainnet01 h = h < 771_414 -- ~ 2020-07-23 16:00:00
 oldDaGuard Testnet04 h = h < 318_204 -- ~ 2020-07-23 16:00:00
 oldDaGuard Development h = h + 30 < to20ChainsDevelopment -- 30 blocks before the transition
 oldDaGuard _ _ = False
-