diff --git a/src/main/java/org/libdohj/params/DogecoinMainNetParams.java b/src/main/java/org/libdohj/params/DogecoinMainNetParams.java
index e9cb6e53..a0ac0a28 100644
--- a/src/main/java/org/libdohj/params/DogecoinMainNetParams.java
+++ b/src/main/java/org/libdohj/params/DogecoinMainNetParams.java
@@ -24,6 +24,9 @@ import static com.google.common.base.Preconditions.checkState;
  * Parameters for the main production network on which people trade goods and services.
  */
 public class DogecoinMainNetParams extends AbstractDogecoinParams {
+    public static final int MAINNET_MAJORITY_WINDOW = 2000;
+    public static final int MAINNET_MAJORITY_REJECT_BLOCK_OUTDATED = 1900;
+    public static final int MAINNET_MAJORITY_ENFORCE_BLOCK_UPGRADE = 1500;
     protected static final int DIFFICULTY_CHANGE_TARGET = 145000;
 
     public DogecoinMainNetParams() {
@@ -52,6 +55,10 @@ public class DogecoinMainNetParams extends AbstractDogecoinParams {
         checkState(genesisHash.equals("1a91e3dace36e2be3bf030a65679fe821aa1d6ef92e7c9902eb318182c355691"),
                 genesisHash);
 
+        majorityEnforceBlockUpgrade = MAINNET_MAJORITY_ENFORCE_BLOCK_UPGRADE;
+        majorityRejectBlockOutdated = MAINNET_MAJORITY_REJECT_BLOCK_OUTDATED;
+        majorityWindow = MAINNET_MAJORITY_WINDOW;
+
         // This contains (at a minimum) the blocks which are not BIP30 compliant. BIP30 changed how duplicate
         // transactions are handled. Duplicated transactions could occur in the case where a coinbase had the same
         // extraNonce and the same outputs but appeared at different heights, and greatly complicated re-org handling.
diff --git a/src/main/java/org/libdohj/params/DogecoinTestNet3Params.java b/src/main/java/org/libdohj/params/DogecoinTestNet3Params.java
index 1593590a..864e9a05 100644
--- a/src/main/java/org/libdohj/params/DogecoinTestNet3Params.java
+++ b/src/main/java/org/libdohj/params/DogecoinTestNet3Params.java
@@ -17,7 +17,6 @@
 
 package org.libdohj.params;
 
-import org.bitcoinj.core.NetworkParameters;
 import org.bitcoinj.core.Utils;
 import org.spongycastle.util.encoders.Hex;
 
@@ -28,6 +27,9 @@ import static com.google.common.base.Preconditions.checkState;
  * and testing of applications and new Bitcoin versions.
  */
 public class DogecoinTestNet3Params extends AbstractDogecoinParams {
+    public static final int TESTNET_MAJORITY_WINDOW = 1000;
+    public static final int TESTNET_MAJORITY_REJECT_BLOCK_OUTDATED = 750;
+    public static final int TESTNET_MAJORITY_ENFORCE_BLOCK_UPGRADE = 501;
     protected static final int DIFFICULTY_CHANGE_TARGET = 145000;
 
     public DogecoinTestNet3Params() {
@@ -51,8 +53,12 @@ public class DogecoinTestNet3Params extends AbstractDogecoinParams {
         checkState(genesisHash.equals("bb0a78264637406b6360aad926284d544d7049f45189db5664f3c4d07350559e"));
         alertSigningKey = Hex.decode("042756726da3c7ef515d89212ee1705023d14be389e25fe15611585661b9a20021908b2b80a3c7200a0139dd2b26946606aab0eef9aa7689a6dc2c7eee237fa834");
 
+        majorityEnforceBlockUpgrade = TESTNET_MAJORITY_ENFORCE_BLOCK_UPGRADE;
+        majorityRejectBlockOutdated = TESTNET_MAJORITY_REJECT_BLOCK_OUTDATED;
+        majorityWindow = TESTNET_MAJORITY_WINDOW;
+
         dnsSeeds = new String[] {
-            // "testnets.chain.so"  // Chain.so
+            "node.jrn.me.uk"
         };
         // Note this is the same as the BIP32 testnet, as BIP44 makes HD wallets
         // chain agnostic. Dogecoin mainnet has its own headers for legacy reasons.