diff --git a/doc/release-notes.md b/doc/release-notes.md
--- a/doc/release-notes.md
+++ b/doc/release-notes.md
@@ -2,4 +2,5 @@
 
   <https://download.bitcoinabc.org/0.19.0/>
 
-This release includes the following features and fixes:
\ No newline at end of file
+This release includes the following features and fixes:
+ - Bump automatic replay protection to November 2019 upgrade
diff --git a/src/chainparams.cpp b/src/chainparams.cpp
--- a/src/chainparams.cpp
+++ b/src/chainparams.cpp
@@ -134,6 +134,9 @@
         // Wed, 15 May 2019 12:00:00 UTC hard fork
         consensus.greatWallActivationTime = 1557921600;
 
+        // Nov 15, 2019 12:00:00 UTC protocol upgrade
+        consensus.gravitonActivationTime = 1573819200;
+
         /**
          * The message start string is designed to be unlikely to occur in
          * normal data. The characters are rarely used upper ASCII, not valid as
@@ -305,6 +308,9 @@
         // Wed, 15 May 2019 12:00:00 UTC hard fork
         consensus.greatWallActivationTime = 1557921600;
 
+        // Nov 15, 2019 12:00:00 UTC protocol upgrade
+        consensus.gravitonActivationTime = 1573819200;
+
         diskMagic[0] = 0x0b;
         diskMagic[1] = 0x11;
         diskMagic[2] = 0x09;
@@ -425,6 +431,9 @@
         // Wed, 15 May 2019 12:00:00 UTC hard fork
         consensus.greatWallActivationTime = 1557921600;
 
+        // Nov 15, 2019 12:00:00 UTC protocol upgrade
+        consensus.gravitonActivationTime = 1573819200;
+
         diskMagic[0] = 0xfa;
         diskMagic[1] = 0xbf;
         diskMagic[2] = 0xb5;
diff --git a/src/consensus/params.h b/src/consensus/params.h
--- a/src/consensus/params.h
+++ b/src/consensus/params.h
@@ -58,6 +58,8 @@
     int magneticAnomalyHeight;
     /** Unix time used for MTP activation of 15 May 2019 12:00:00 UTC upgrade */
     int greatWallActivationTime;
+    /** Unix time used for MTP activation of Nov 15 2019 12:00:00 UTC upgrade */
+    int gravitonActivationTime;
     /**
      * Minimum blocks including miner confirmation of the total of 2016 blocks
      * in a retargeting period, (nPowTargetTimespan / nPowTargetSpacing) which
diff --git a/src/validation.cpp b/src/validation.cpp
--- a/src/validation.cpp
+++ b/src/validation.cpp
@@ -319,7 +319,7 @@
     return nMedianTimePast >=
            gArgs.GetArg(
                "-replayprotectionactivationtime",
-               config.GetChainParams().GetConsensus().greatWallActivationTime);
+               config.GetChainParams().GetConsensus().gravitonActivationTime);
 }
 
 static bool IsReplayProtectionEnabled(const Config &config,