diff --git a/PivxWallet/BRPeer.m b/PivxWallet/BRPeer.m
index d0b15495..c5be411b 100644
--- a/PivxWallet/BRPeer.m
+++ b/PivxWallet/BRPeer.m
@@ -40,8 +40,8 @@
 #define MAX_MSG_LENGTH     0x02000000
 #define MAX_GETDATA_HASHES 50000
 #define ENABLED_SERVICES   0     // we don't provide full blocks to remote nodes
-#define PROTOCOL_VERSION   70919
-#define MIN_PROTO_VERSION  70919 // peers earlier than this protocol version not supported (need v0.9 txFee relay rules)
+#define PROTOCOL_VERSION   70921
+#define MIN_PROTO_VERSION  70921 // peers earlier than this protocol version not supported (need v0.9 txFee relay rules)
 #define LOCAL_HOST         0x7f000001
 #define CONNECT_TIMEOUT    3.0
 #define MEMPOOL_TIMEOUT    5.0
diff --git a/PivxWallet/BRPeerManager.m b/PivxWallet/BRPeerManager.m
index a462944c..91f86176 100644
--- a/PivxWallet/BRPeerManager.m
+++ b/PivxWallet/BRPeerManager.m
@@ -66,24 +66,28 @@
 // blockchain checkpoints - these are also used as starting points for partial chain downloads, so they need to be at
 // difficulty transition boundaries in order to verify the block difficulty at the immediately following transition
 static const struct { uint32_t height; const char *hash; uint32_t timestamp; uint32_t target; } checkpoint_array[] = {
-    {     0, "0000041e482b9b9691d98eefb48473405c0b8ec31b76df3797c74a78680ef818", 1454124731, 0x1e0ffff0u },
-    {259201, "1c9121bf9329a6234bfd1ea2d91515f19cd96990725265253f4b164283ade5dd", 1471401614, 0x1c056dacu },
-    {424998, "f31e381eedb0ed3ed65fcc98cc71f36012bee32e8efd017c4f9fb0620fd35f6b", 1481590494, 0x1a57f411u },
-    {616764, "29dd0bd1c59484f290896687b4ffb6a49afa5c498caf61967c69a541f8191557", 1493231313, 0x1a4d346du },
-    {623933, "c7aafa648a0f1450157dc93bd4d7448913a85b7448f803b4ab970d91fc2a7da7", 1493667067, 0x1a3f78c0u},
-    {791150, "8e76f462e4e82d1bd21cb72e1ce1567d4ddda2390f26074ffd1f5d9c270e5e50", 1503804886, 0x1b009695u},
-    {795000, "4423cceeb9fd574137a18733416275a70fdf95283cc79ad976ca399aa424a443", 1504047699, 0x1a7a548fu},
-    {863787, "5b2482eca24caf2a46bb22e0545db7b7037282733faa3a42ec20542509999a64", 1508214671, 0x1a682047u},
-    {863795, "2ad866818c4866e0d555181daccc628056216c0db431f88a825e84ed4f469067", 1508217664, 0x1b020221u},
-    {863805, "a755bd9a22b63c70d3db474f4b2b61a1f86c835b290a081bb3ec1ba2103eb4cb", 1508219189, 0x1b049119u},
-    {895400, "7796a0274a608fac12d400198174e50beda992c1d522e52e5b95b884bc1beac6", 1510179528, 0x1a75c1eau},
-    {895991, "d53013ed7ea5c325b9696c95e07667d6858f8ff7ee13fecfa90827bf3c9ae316", 1510216596, 0x1b00f83au},
-    {908000, "202708f8c289b676fceb832a079ff6b308a28608339acbf7584de533619d014d", 1510948627, 0x1a74dca4u},
+    {      0, "0000041e482b9b9691d98eefb48473405c0b8ec31b76df3797c74a78680ef818", 1454124731, 0x1e0ffff0u},
+    { 259201, "1c9121bf9329a6234bfd1ea2d91515f19cd96990725265253f4b164283ade5dd", 1471401614, 0x1c056dacu},
+    { 424998, "f31e381eedb0ed3ed65fcc98cc71f36012bee32e8efd017c4f9fb0620fd35f6b", 1481590494, 0x1a57f411u},
+    { 616764, "29dd0bd1c59484f290896687b4ffb6a49afa5c498caf61967c69a541f8191557", 1493231313, 0x1a4d346du},
+    { 623933, "c7aafa648a0f1450157dc93bd4d7448913a85b7448f803b4ab970d91fc2a7da7", 1493667067, 0x1a3f78c0u},
+    { 791150, "8e76f462e4e82d1bd21cb72e1ce1567d4ddda2390f26074ffd1f5d9c270e5e50", 1503804886, 0x1b009695u},
+    { 795000, "4423cceeb9fd574137a18733416275a70fdf95283cc79ad976ca399aa424a443", 1504047699, 0x1a7a548fu},
+    { 863787, "5b2482eca24caf2a46bb22e0545db7b7037282733faa3a42ec20542509999a64", 1508214671, 0x1a682047u},
+    { 863795, "2ad866818c4866e0d555181daccc628056216c0db431f88a825e84ed4f469067", 1508217664, 0x1b020221u},
+    { 863805, "a755bd9a22b63c70d3db474f4b2b61a1f86c835b290a081bb3ec1ba2103eb4cb", 1508219189, 0x1b049119u},
+    { 895400, "7796a0274a608fac12d400198174e50beda992c1d522e52e5b95b884bc1beac6", 1510179528, 0x1a75c1eau},
+    { 895991, "d53013ed7ea5c325b9696c95e07667d6858f8ff7ee13fecfa90827bf3c9ae316", 1510216596, 0x1b00f83au},
+    { 908000, "202708f8c289b676fceb832a079ff6b308a28608339acbf7584de533619d014d", 1510948627, 0x1a74dca4u},
     {1142400, "98aff9d605bf123247f98b1e3a02567eb5799d208d78ec30fb89737b1c1f79c5", 1525106065, 0x1a4ab81cu},
     {1679090, "f747ce055ba1b12e1f2e842bd480bc647210799359cb2e553ab292065e3419d6", 1551490853, 0x1b008da5u},
     {1686229, "bb42bf1e886a7c23474634c90893dd3d68a6ccbfea4ac92a98da5cad0c6a6cb7", 1551924791, 0x1a6b18a8u},
     {1778954, "0d3241268264a2908d6babf00d9cd1ffb83d93d7bb4e428820127fe227c2029c", 1556529343, 0x1b009528u},
-    {1788528, "ea9243ff8fc079fdd7a04f11fac415de4d98e1bb0dc38db6f79f8f8bbfdbe496", 1556924938, 0x1b00cf96u}
+    {1788528, "ea9243ff8fc079fdd7a04f11fac415de4d98e1bb0dc38db6f79f8f8bbfdbe496", 1556924938, 0x1b00cf96u},
+    {2153200, "14e477e597d24549cac5e59d97d32155e6ec2861c1003b42d0566f9bf39b65d5", 1578332625, 0x1b0646bau},
+    {2356049, "62e80d8e193bca84655fb78893b20f54a79f2d71124c4ea37b7ef51a0d5451c4", 1590808140, 0x1b05e2e6u},
+    {2365700, "b5d0beead57735539abc2db2b0b08cd65db3e5928efd3c3bf3182d5bf013f36c", 1591401645, 0x1b074b5bu},
+    {2678402, "580a26ff0a45177a7a6f387f009c5b26140ea48b4790a857d9a796f8b3c25899", 1610635380, 0x1b086a56u}
 };
 
 static const char *dns_seeds[] = {