diff --git a/source/agora/test/QuorumPreimage.d b/source/agora/test/QuorumPreimage.d
index 8e6abe3feae..70ada0118eb 100644
--- a/source/agora/test/QuorumPreimage.d
+++ b/source/agora/test/QuorumPreimage.d
@@ -34,6 +34,7 @@ unittest
     };
     conf.node.network_discovery_interval = 2.seconds;
     conf.node.retry_delay = 250.msecs;
+    conf.consensus.quorum_threshold = 60;
     auto network = makeTestNetwork!TestAPIManager(conf);
     network.start();
     scope(exit) network.shutdown();
@@ -63,22 +64,22 @@ unittest
 
     enum quorums_1 = [
         // 0
-        QuorumConfig(4, [0, 1, 3, 4, 5]),
+        QuorumConfig(3, [0, 1, 3, 4, 5]),
 
         // 1
-        QuorumConfig(4, [0, 1, 2, 3, 4]),
+        QuorumConfig(3, [0, 1, 2, 3, 4]),
 
         // 2
-        QuorumConfig(4, [0, 2, 3, 4, 5]),
+        QuorumConfig(3, [0, 2, 3, 4, 5]),
 
         // 3
-        QuorumConfig(4, [0, 1, 2, 3, 5]),
+        QuorumConfig(3, [0, 1, 2, 3, 5]),
 
         // 4
-        QuorumConfig(4, [0, 1, 2, 4, 5]),
+        QuorumConfig(3, [0, 1, 2, 4, 5]),
 
         // 5
-        QuorumConfig(4, [0, 2, 3, 4, 5]),
+        QuorumConfig(3, [0, 2, 3, 4, 5]),
 
         QuorumConfig.init,
         QuorumConfig.init,
@@ -119,28 +120,28 @@ unittest
 
     enum quorums_2 = [
         // 0
-        QuorumConfig(5, [0, 1, 3, 4, 6, 7]),
+        QuorumConfig(4, [0, 1, 3, 4, 6, 7]),
 
         // 1
-        QuorumConfig(5, [0, 1, 3, 4, 5, 6]),
+        QuorumConfig(4, [0, 1, 3, 4, 5, 6]),
 
         // 2
-        QuorumConfig(5, [0, 1, 3, 4, 5, 6]),
+        QuorumConfig(4, [0, 1, 3, 4, 5, 6]),
 
         // 3
-        QuorumConfig(5, [0, 1, 3, 4, 5, 6]),
+        QuorumConfig(4, [0, 1, 3, 4, 5, 6]),
 
         // 4
-        QuorumConfig(5, [0, 1, 3, 4, 5, 6]),
+        QuorumConfig(4, [0, 1, 3, 4, 5, 6]),
 
         // 5
-        QuorumConfig(5, [0, 1, 3, 4, 5, 6]),
+        QuorumConfig(4, [0, 1, 3, 4, 5, 6]),
 
         // 6
-        QuorumConfig(5, [0, 1, 2, 3, 4, 5]),
+        QuorumConfig(4, [0, 1, 2, 3, 4, 5]),
 
         // 7
-        QuorumConfig(5, [0, 1, 3, 4, 5, 7]),
+        QuorumConfig(4, [0, 1, 3, 4, 5, 7]),
     ];
 
     static assert(quorums_1 != quorums_2);
@@ -165,28 +166,28 @@ unittest
     // which use a different preimage
     enum quorums_3 = [
         // 0
-        QuorumConfig(5, [0, 1, 3, 4, 5, 6]),
+        QuorumConfig(4, [0, 1, 3, 4, 5, 6]),
 
         // 1
-        QuorumConfig(5, [0, 1, 3, 4, 5, 6]),
+        QuorumConfig(4, [0, 1, 3, 4, 5, 6]),
 
         // 2
-        QuorumConfig(5, [0, 1, 3, 4, 5, 6]),
+        QuorumConfig(4, [0, 1, 3, 4, 5, 6]),
 
         // 3
-        QuorumConfig(5, [0, 1, 3, 4, 5, 6]),
+        QuorumConfig(4, [0, 1, 3, 4, 5, 6]),
 
         // 4
-        QuorumConfig(5, [0, 1, 3, 4, 5, 6]),
+        QuorumConfig(4, [0, 1, 3, 4, 5, 6]),
 
         // 5
-        QuorumConfig(5, [0, 1, 3, 4, 5, 6]),
+        QuorumConfig(4, [0, 1, 3, 4, 5, 6]),
 
         // 6
-        QuorumConfig(5, [1, 2, 3, 4, 5, 6]),
+        QuorumConfig(4, [1, 2, 3, 4, 5, 6]),
 
         // 7
-        QuorumConfig(5, [0, 1, 4, 5, 6, 7]),
+        QuorumConfig(4, [0, 1, 4, 5, 6, 7]),
     ];
 
     static assert(quorums_2 != quorums_3);