diff --git a/contrib/linearize/example-linearize.cfg b/contrib/linearize/example-linearize.cfg
index 7482675be..7379446a5 100644
--- a/contrib/linearize/example-linearize.cfg
+++ b/contrib/linearize/example-linearize.cfg
@@ -4,7 +4,7 @@ rpcuser=someuser
 rpcpassword=somepassword
 host=127.0.0.1
 port=9332
-#port=19334
+#port=19332
 
 # bootstrap.dat hashlist settings (linearize-hashes)
 max_height=313000
diff --git a/contrib/rpm/bitcoin.spec b/contrib/rpm/bitcoin.spec
index 0b6d31a41..2c9d8e06c 100644
--- a/contrib/rpm/bitcoin.spec
+++ b/contrib/rpm/bitcoin.spec
@@ -338,7 +338,7 @@ for selinuxvariant in %{selinux_variants}; do
 done
 %{_sbindir}/semanage port -a -t bitcoin_port_t -p tcp 9332
 %{_sbindir}/semanage port -a -t bitcoin_port_t -p tcp 9333
-%{_sbindir}/semanage port -a -t bitcoin_port_t -p tcp 19334
+%{_sbindir}/semanage port -a -t bitcoin_port_t -p tcp 19332
 %{_sbindir}/semanage port -a -t bitcoin_port_t -p tcp 19335
 %{_sbindir}/fixfiles -R bitcoin-server restore &> /dev/null || :
 %{_sbindir}/restorecon -R %{_localstatedir}/lib/bitcoin || :
@@ -357,7 +357,7 @@ if [ $1 -eq 0 ]; then
 	if [ `%{_sbindir}/sestatus |grep -c "disabled"` -eq 0 ]; then
 	%{_sbindir}/semanage port -d -p tcp 9332
 	%{_sbindir}/semanage port -d -p tcp 9333
-	%{_sbindir}/semanage port -d -p tcp 19334
+	%{_sbindir}/semanage port -d -p tcp 19332
 	%{_sbindir}/semanage port -d -p tcp 19335
 	for selinuxvariant in %{selinux_variants}; do
 		%{_sbindir}/semodule -s ${selinuxvariant} -r bitcoin &> /dev/null || :
diff --git a/contrib/spendfrom/spendfrom.py b/contrib/spendfrom/spendfrom.py
index 198ee7609..8c248a3f9 100755
--- a/contrib/spendfrom/spendfrom.py
+++ b/contrib/spendfrom/spendfrom.py
@@ -70,7 +70,7 @@ def connect_JSON(config):
     testnet = config.get('testnet', '0')
     testnet = (int(testnet) > 0)  # 0/1 in config file, convert to True/False
     if not 'rpcport' in config:
-        config['rpcport'] = 19334 if testnet else 9332
+        config['rpcport'] = 19332 if testnet else 9332
     connect = "http://%s:%s@127.0.0.1:%s"%(config['rpcuser'], config['rpcpassword'], config['rpcport'])
     try:
         result = ServiceProxy(connect)
diff --git a/doc/REST-interface.md b/doc/REST-interface.md
index 06caaa9fa..77ec04909 100644
--- a/doc/REST-interface.md
+++ b/doc/REST-interface.md
@@ -53,7 +53,7 @@ https://github.com/bitcoin/bips/blob/master/bip-0064.mediawiki
 
 Example:
 ```
-$ curl localhost:19334/rest/getutxos/checkmempool/b2cdfd7b89def827ff8af7cd9bff7627ff72e5e8b0f71210f92ea7a4000c5d75-0.json 2>/dev/null | json_pp
+$ curl localhost:19332/rest/getutxos/checkmempool/b2cdfd7b89def827ff8af7cd9bff7627ff72e5e8b0f71210f92ea7a4000c5d75-0.json 2>/dev/null | json_pp
 {
    "chaintipHash" : "00000000fb01a7f3745a717f8caebee056c484e6e0bfe4a9591c235bb70506fb",
    "chainHeight" : 325347,
diff --git a/doc/release-notes-litecoin.md b/doc/release-notes-litecoin.md
index ed1ad3f3d..4e4ef2382 100644
--- a/doc/release-notes-litecoin.md
+++ b/doc/release-notes-litecoin.md
@@ -48,8 +48,7 @@ Old and new addresses can be used interchangeably.
 Reset Testnet
 -------------
 
-Testnet3 has been deprecated and replace with Testnet4.
-
+Testnet3 has been deprecated and replaced with Testnet4.
 
 Credits
 =======
diff --git a/qa/rpc-tests/rawtransactions.py b/qa/rpc-tests/rawtransactions.py
index 694395c9d..afb96202b 100755
--- a/qa/rpc-tests/rawtransactions.py
+++ b/qa/rpc-tests/rawtransactions.py
@@ -23,7 +23,7 @@ class RawTransactionsTest(BitcoinTestFramework):
         self.nodes = start_nodes(self.num_nodes, self.options.tmpdir)
 
         #connect to a local machine for debugging
-        #url = "http://bitcoinrpc:DP6DvqZtqXarpeNWyN3LZTFchCCyCUuHwNF7E8pX99x1@%s:%d" % ('127.0.0.1', 19334)
+        #url = "http://bitcoinrpc:DP6DvqZtqXarpeNWyN3LZTFchCCyCUuHwNF7E8pX99x1@%s:%d" % ('127.0.0.1', 19332)
         #proxy = AuthServiceProxy(url)
         #proxy.url = url # store URL on proxy for info
         #self.nodes.append(proxy)
diff --git a/src/chainparams.cpp b/src/chainparams.cpp
index d6e27fc54..d9f5a952b 100644
--- a/src/chainparams.cpp
+++ b/src/chainparams.cpp
@@ -202,7 +202,7 @@ public:
         consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nTimeout = 1517356801; // January 31st, 2018
 
         // The best chain should have at least this much work.
-        consensus.nMinimumChainWork = uint256S("0x00");
+        consensus.nMinimumChainWork = uint256S("0x00000000000000000000000000000000000000000000000000000000872d04d7");
 
         pchMessageStart[0] = 0xfd;
         pchMessageStart[1] = 0xd2;
@@ -240,10 +240,10 @@ public:
 
         checkpointData = (CCheckpointData) {
             boost::assign::map_list_of
-            ( 0, uint256S("0x4966625a4b2851d9fdee139e56211a0d88575f59ed816ff5e6a63deb4e3e29a0")),
-            0,
-            0,
-            0
+            ( 2056, uint256S("0x17748a31ba97afdc9a4f86837a39d287e3e7c7290a08a1d816c5969c78a83289")),
+            1487036370,
+            2057,
+            576
         };
 
     }
diff --git a/src/chainparamsbase.cpp b/src/chainparamsbase.cpp
index 1cafb6b54..37db0e5f8 100644
--- a/src/chainparamsbase.cpp
+++ b/src/chainparamsbase.cpp
@@ -45,7 +45,7 @@ class CBaseTestNetParams : public CBaseChainParams
 public:
     CBaseTestNetParams()
     {
-        nRPCPort = 19334;
+        nRPCPort = 19332;
         strDataDir = "testnet4";
     }
 };