diff --git a/aquariuscoin-qt.pro b/aquariuscoin-qt.pro
index bc9e3da1c7..98e5adcdec 100644
--- a/aquariuscoin-qt.pro
+++ b/aquariuscoin-qt.pro
@@ -1,6 +1,6 @@
 TEMPLATE = app
 TARGET = aquariuscoin-qt
-VERSION = 2.0.0
+VERSION = 2.0.1
 INCLUDEPATH += src src/json src/qt
 QT += network
 DEFINES += ENABLE_WALLET
diff --git a/src/clientversion.h b/src/clientversion.h
index 582a017c71..b19ecff85a 100644
--- a/src/clientversion.h
+++ b/src/clientversion.h
@@ -8,7 +8,7 @@
 // These need to be macros, as version.cpp's and bitcoin-qt.rc's voodoo requires it
 #define CLIENT_VERSION_MAJOR       2
 #define CLIENT_VERSION_MINOR       0
-#define CLIENT_VERSION_REVISION    0
+#define CLIENT_VERSION_REVISION    1
 #define CLIENT_VERSION_BUILD       0
 
 // Set to true for release, false for prerelease or test build
diff --git a/src/main.cpp b/src/main.cpp
index 9ec6f58fbc..b02be2e51a 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -2008,9 +2008,16 @@ bool CBlock::CheckBlock(bool fCheckPOW, bool fCheckMerkleRoot, bool fCheckSig) c
         return DoS(50, error("CheckBlock() : proof of work failed"));
 
     // Check timestamp
-    if (GetBlockTime() > FutureDriftV1(GetAdjustedTime()))
-        return error("CheckBlock() : block timestamp too far in the future");
-
+    if (IsProtocolV4(nTime))
+    {
+      if (GetBlockTime() > (FutureDriftV2(GetAdjustedTime())))
+          return error("CheckBlock() : block timestamp too far in the future");
+    }
+    else
+    {
+      if (GetBlockTime() > (FutureDriftV1(GetAdjustedTime())))
+          return error("CheckBlock() : block timestamp too far in the future");
+    }
     // First transaction must be coinbase, the rest must not be
     if (vtx.empty() || !vtx[0].IsCoinBase())
         return DoS(100, error("CheckBlock() : first tx is not coinbase"));
diff --git a/src/main.h b/src/main.h
index a85cc67327..0cf678986c 100644
--- a/src/main.h
+++ b/src/main.h
@@ -58,6 +58,7 @@ static const int64_t COIN_YEAR_REWARD2 = 6 * CENT;  // fork at block 70000 = IsR
 inline bool IsRewardHF(int nHeight) { return TestNet() || nHeight > 70000; } // initialize fixed 1 COIN (with halving) + 6% reward
 inline bool IsProtocolV2(int nHeight) { return TestNet() || nHeight > 589289; } // 589289 ARCO  HardFork to v2 Protocol
 inline bool IsProtocolV3(int64_t nTime) { return TestNet() || nTime > 1489900000; } // 1489900000 GMT: Sun, 19 Mar 2017 05:06:40 GMT
+inline bool IsProtocolV4(int64_t nTime) { return TestNet() || nTime > 1501700400; } // future drift fix, (GMT): Wednesday, August 2, 2017 7:00:00 PM
 
 inline int64_t FutureDriftV1(int64_t nTime) { return nTime + 10 * 60; }
 inline int64_t FutureDriftV2(int64_t nTime) { return nTime + 15; }
diff --git a/src/version.h b/src/version.h
index 98b4b000dc..d9bbbb5b90 100644
--- a/src/version.h
+++ b/src/version.h
@@ -30,13 +30,13 @@ static const int DATABASE_VERSION = 70510;
 // network protocol versioning
 //
 
-static const int PROTOCOL_VERSION = 60015;
+static const int PROTOCOL_VERSION = 60016;
 
 // intial proto version, to be increased after version/verack negotiation
 static const int INIT_PROTO_VERSION = 209;
 
 // disconnect from peers older than this proto version
-static const int MIN_PEER_PROTO_VERSION = 60014;
+static const int MIN_PEER_PROTO_VERSION = 60015;
 
 // nTime field added to CAddress, starting with this version;
 // if possible, avoid requesting addresses nodes older than this