diff --git a/src/kernel/chainparams.cpp b/src/kernel/chainparams.cpp
index b0e657ba45f50d..eb672981d3b70b 100644
--- a/src/kernel/chainparams.cpp
+++ b/src/kernel/chainparams.cpp
@@ -116,7 +116,7 @@ class CMainParams : public CChainParams {
         pchMessageStart[1] = 0xbe;
         pchMessageStart[2] = 0xb4;
         pchMessageStart[3] = 0xd9;
-        nDefaultPort = 8333;
+        nDefaultPort = 6333;
         nPruneAfterHeight = 100000;
         m_assumed_blockchain_size = 590;
         m_assumed_chain_state_size = 9;
@@ -229,7 +229,7 @@ class CTestNetParams : public CChainParams {
         pchMessageStart[1] = 0x11;
         pchMessageStart[2] = 0x09;
         pchMessageStart[3] = 0x07;
-        nDefaultPort = 18333;
+        nDefaultPort = 16333;
         nPruneAfterHeight = 1000;
         m_assumed_blockchain_size = 42;
         m_assumed_chain_state_size = 3;
@@ -300,7 +300,7 @@ class SigNetParams : public CChainParams {
 
             // Hardcoded nodes can be removed once there are more DNS seeds
             vSeeds.emplace_back("178.128.221.177");
-            vSeeds.emplace_back("v7ajjeirttkbnt32wpy3c6w3emwnfr3fkla7hpxcfokr3ysd3kqtzmqd.onion:38333");
+            vSeeds.emplace_back("v7ajjeirttkbnt32wpy3c6w3emwnfr3fkla7hpxcfokr3ysd3kqtzmqd.onion:36333");
 
             consensus.nMinimumChainWork = uint256S("0x000000000000000000000000000000000000000000000000000001ad46be4862");
             consensus.defaultAssumeValid = uint256S("0x0000013d778ba3f914530f11f6b69869c9fab54acff85acd7b8201d111f19b7f"); // 150000
@@ -365,7 +365,7 @@ class SigNetParams : public CChainParams {
         uint256 hash = h.GetHash();
         std::copy_n(hash.begin(), 4, pchMessageStart.begin());
 
-        nDefaultPort = 38333;
+        nDefaultPort = 36333;
         nPruneAfterHeight = 1000;
 
         genesis = CreateGenesisBlock(1598918400, 52613770, 0x1e0377ae, 1, 50 * COIN);