diff --git a/build/bootstrap/bootstrappers.pi b/build/bootstrap/bootstrappers.pi
index 0854ac0ed..82a4608f7 100644
--- a/build/bootstrap/bootstrappers.pi
+++ b/build/bootstrap/bootstrappers.pi
@@ -1,12 +1,4 @@
-/dns4/bootstrap-0-sin.fil-test.net/tcp/1347/p2p/12D3KooWPdUquftaQvoQEtEdsRBAhwD6jopbF2oweVTzR59VbHEd
-/ip4/86.109.15.57/tcp/1347/p2p/12D3KooWPdUquftaQvoQEtEdsRBAhwD6jopbF2oweVTzR59VbHEd
-/dns4/bootstrap-0-dfw.fil-test.net/tcp/1347/p2p/12D3KooWQSCkHCzosEyrh8FgYfLejKgEPM5VB6qWzZE3yDAuXn8d
-/ip4/139.178.84.45/tcp/1347/p2p/12D3KooWQSCkHCzosEyrh8FgYfLejKgEPM5VB6qWzZE3yDAuXn8d
-/dns4/bootstrap-0-fra.fil-test.net/tcp/1347/p2p/12D3KooWEXN2eQmoyqnNjde9PBAQfQLHN67jcEdWU6JougWrgXJK
-/ip4/136.144.49.17/tcp/1347/p2p/12D3KooWEXN2eQmoyqnNjde9PBAQfQLHN67jcEdWU6JougWrgXJK
-/dns4/bootstrap-1-sin.fil-test.net/tcp/1347/p2p/12D3KooWLmJkZd33mJhjg5RrpJ6NFep9SNLXWc4uVngV4TXKwzYw
-/ip4/86.109.15.123/tcp/1347/p2p/12D3KooWLmJkZd33mJhjg5RrpJ6NFep9SNLXWc4uVngV4TXKwzYw
-/dns4/bootstrap-1-dfw.fil-test.net/tcp/1347/p2p/12D3KooWGXLHjiz6pTRu7x2pkgTVCoxcCiVxcNLpMnWcJ3JiNEy5
-/ip4/139.178.86.3/tcp/1347/p2p/12D3KooWGXLHjiz6pTRu7x2pkgTVCoxcCiVxcNLpMnWcJ3JiNEy5
-/dns4/bootstrap-1-fra.fil-test.net/tcp/1347/p2p/12D3KooW9szZmKttS9A1FafH3Zc2pxKwwmvCWCGKkRP4KmbhhC4R
-/ip4/136.144.49.131/tcp/1347/p2p/12D3KooW9szZmKttS9A1FafH3Zc2pxKwwmvCWCGKkRP4KmbhhC4R
+/dns4/bootstrap-0.calibration.fildev.network/tcp/1347/p2p/12D3KooWPmhFGJkE7wDUdtzDYr7ReML9vgzJ8Tv7ubh9T6Le1Bmn
+/dns4/bootstrap-2.calibration.fildev.network/tcp/1347/p2p/12D3KooWPWUw5yEet6NWpxhxoibXFbLprG4k5PMLKLeubGBLf6nd
+/dns4/bootstrap-1.calibration.fildev.network/tcp/1347/p2p/12D3KooWGwv2YtXyYPrEKssttUT3TKZknPkCWKR6WVTvt9LW4hdf
+/dns4/bootstrap-3.calibration.fildev.network/tcp/1347/p2p/12D3KooWHgMU953YxD5skVG3RKa58TXwVL9z5ycGKrZdaFzGpouT
diff --git a/build/genesis/devnet.car b/build/genesis/devnet.car
deleted file mode 100644
index 3e156de61..000000000
Binary files a/build/genesis/devnet.car and /dev/null differ
diff --git a/build/params_testnet.go b/build/params_testnet.go
index e0e3fc3fa..a74126a33 100644
--- a/build/params_testnet.go
+++ b/build/params_testnet.go
@@ -13,10 +13,11 @@ import (
 )
 
 func init() {
-	power.ConsensusMinerMinPower = big.NewInt(1024 << 30)
+	power.ConsensusMinerMinPower = big.NewInt(512 << 30)
 	miner.SupportedProofTypes = map[abi.RegisteredSealProof]struct{}{
-		abi.RegisteredSealProof_StackedDrg32GiBV1: {},
-		abi.RegisteredSealProof_StackedDrg64GiBV1: {},
+		abi.RegisteredSealProof_StackedDrg512MiBV1: {},
+		abi.RegisteredSealProof_StackedDrg32GiBV1:  {},
+		abi.RegisteredSealProof_StackedDrg64GiBV1:  {},
 	}
 }