diff --git a/model/src/testFixtures/java/de/cotto/lndmanagej/model/LocalOpenChannelFixtures.java b/model/src/testFixtures/java/de/cotto/lndmanagej/model/LocalOpenChannelFixtures.java
index dad40730..a03d126e 100644
--- a/model/src/testFixtures/java/de/cotto/lndmanagej/model/LocalOpenChannelFixtures.java
+++ b/model/src/testFixtures/java/de/cotto/lndmanagej/model/LocalOpenChannelFixtures.java
@@ -17,7 +17,7 @@ import static de.cotto.lndmanagej.model.PubkeyFixtures.PUBKEY_2;
 import static de.cotto.lndmanagej.model.PubkeyFixtures.PUBKEY_3;
 
 public class LocalOpenChannelFixtures {
-    public static final long NUM_UPDATES = 99_999L;
+    public static final long NUM_UPDATES = 100_200_300_400L;
 
     public static final Coins TOTAL_SENT = Coins.ofSatoshis(1_001);
     public static final Coins TOTAL_SENT_2 = Coins.ofSatoshis(101);
diff --git a/web/src/integrationTest/java/de/cotto/lndmanagej/controller/ChannelControllerIT.java b/web/src/integrationTest/java/de/cotto/lndmanagej/controller/ChannelControllerIT.java
index 2b40f769..27473c22 100644
--- a/web/src/integrationTest/java/de/cotto/lndmanagej/controller/ChannelControllerIT.java
+++ b/web/src/integrationTest/java/de/cotto/lndmanagej/controller/ChannelControllerIT.java
@@ -30,6 +30,7 @@ import static de.cotto.lndmanagej.model.ForceClosedChannelFixtures.FORCE_CLOSED_
 import static de.cotto.lndmanagej.model.LocalOpenChannelFixtures.LOCAL_OPEN_CHANNEL;
 import static de.cotto.lndmanagej.model.LocalOpenChannelFixtures.LOCAL_OPEN_CHANNEL_2;
 import static de.cotto.lndmanagej.model.LocalOpenChannelFixtures.LOCAL_OPEN_CHANNEL_PRIVATE;
+import static de.cotto.lndmanagej.model.LocalOpenChannelFixtures.NUM_UPDATES;
 import static de.cotto.lndmanagej.model.LocalOpenChannelFixtures.TOTAL_RECEIVED;
 import static de.cotto.lndmanagej.model.LocalOpenChannelFixtures.TOTAL_RECEIVED_2;
 import static de.cotto.lndmanagej.model.LocalOpenChannelFixtures.TOTAL_SENT;
@@ -99,7 +100,8 @@ class ChannelControllerIT {
                 .andExpect(jsonPath("$.status.private", is(false)))
                 .andExpect(jsonPath("$.status.active", is(false)))
                 .andExpect(jsonPath("$.status.closed", is(false)))
-                .andExpect(jsonPath("$.status.openClosed", is("OPEN")));
+                .andExpect(jsonPath("$.status.openClosed", is("OPEN")))
+                .andExpect(jsonPath("$.numUpdates", is(NUM_UPDATES)));
     }
 
     @Test
@@ -140,6 +142,7 @@ class ChannelControllerIT {
                 .andExpect(jsonPath("$.status.active", is(true)))
                 .andExpect(jsonPath("$.status.closed", is(false)))
                 .andExpect(jsonPath("$.status.openClosed", is("OPEN")))
+                .andExpect(jsonPath("$.numUpdates", is(NUM_UPDATES)))
                 .andExpect(jsonPath("$.onChainCosts.openCosts", is("1000")))
                 .andExpect(jsonPath("$.onChainCosts.closeCosts", is("2000")))
                 .andExpect(jsonPath("$.onChainCosts.sweepCosts", is("3000")))
diff --git a/web/src/main/java/de/cotto/lndmanagej/controller/dto/ChannelDetailsDto.java b/web/src/main/java/de/cotto/lndmanagej/controller/dto/ChannelDetailsDto.java
index ad6aba22..5af62a10 100644
--- a/web/src/main/java/de/cotto/lndmanagej/controller/dto/ChannelDetailsDto.java
+++ b/web/src/main/java/de/cotto/lndmanagej/controller/dto/ChannelDetailsDto.java
@@ -31,7 +31,8 @@ public record ChannelDetailsDto(
         ClosedChannelDetailsDto closeDetails,
         FeeReportDto feeReport,
         FlowReportDto flowReport,
-        RebalanceReportDto rebalanceReport
+        RebalanceReportDto rebalanceReport,
+        long numUpdates
 ) {
     public ChannelDetailsDto(
             ChannelDto channelDto,
@@ -62,7 +63,8 @@ public record ChannelDetailsDto(
                 channelDto.closeDetails(),
                 FeeReportDto.createFromModel(feeReport),
                 FlowReportDto.createFromModel(flowReport),
-                RebalanceReportDto.createFromModel(rebalanceReport)
+                RebalanceReportDto.createFromModel(rebalanceReport),
+                channelDto.numUpdates()
         );
     }
 
diff --git a/web/src/main/java/de/cotto/lndmanagej/controller/dto/ChannelDto.java b/web/src/main/java/de/cotto/lndmanagej/controller/dto/ChannelDto.java
index c716fbc4..d25df189 100644
--- a/web/src/main/java/de/cotto/lndmanagej/controller/dto/ChannelDto.java
+++ b/web/src/main/java/de/cotto/lndmanagej/controller/dto/ChannelDto.java
@@ -2,6 +2,7 @@ package de.cotto.lndmanagej.controller.dto;
 
 import de.cotto.lndmanagej.model.ChannelPoint;
 import de.cotto.lndmanagej.model.LocalChannel;
+import de.cotto.lndmanagej.model.LocalOpenChannel;
 import de.cotto.lndmanagej.model.OpenInitiator;
 import de.cotto.lndmanagej.model.Pubkey;
 
@@ -17,7 +18,8 @@ public record ChannelDto(
         String totalReceived,
         ChannelStatusDto status,
         OpenInitiator openInitiator,
-        ClosedChannelDetailsDto closeDetails
+        ClosedChannelDetailsDto closeDetails,
+        long numUpdates
 ) {
     public ChannelDto(LocalChannel localChannel) {
         this(
@@ -32,7 +34,8 @@ public record ChannelDto(
                 String.valueOf(localChannel.getTotalReceived().satoshis()),
                 ChannelStatusDto.createFromModel(localChannel.getStatus()),
                 localChannel.getOpenInitiator(),
-                ClosedChannelDetailsDto.createFromModel(localChannel)
+                ClosedChannelDetailsDto.createFromModel(localChannel),
+                localChannel instanceof LocalOpenChannel localOpenChannel ? localOpenChannel.getNumUpdates() : 0L
         );
     }
 }