diff --git a/core/src/main/java/bisq/core/api/CoreDisputesService.java b/core/src/main/java/bisq/core/api/CoreDisputesService.java
index 3c23d09273..347ace2203 100644
--- a/core/src/main/java/bisq/core/api/CoreDisputesService.java
+++ b/core/src/main/java/bisq/core/api/CoreDisputesService.java
@@ -71,7 +71,7 @@ public class CoreDisputesService {
     }
 
     public List<Dispute> getDisputes() {
-        return arbitrationManager.getDisputesAsObservableList();
+        return new ArrayList<>(arbitrationManager.getDisputesAsObservableList());
     }
 
     public Dispute getDispute(String tradeId) {
diff --git a/core/src/main/java/bisq/core/support/dispute/DisputeManager.java b/core/src/main/java/bisq/core/support/dispute/DisputeManager.java
index 7517b5aeeb..2634043a37 100644
--- a/core/src/main/java/bisq/core/support/dispute/DisputeManager.java
+++ b/core/src/main/java/bisq/core/support/dispute/DisputeManager.java
@@ -222,7 +222,9 @@ public abstract class DisputeManager<T extends DisputeList<Dispute>> extends Sup
     }
 
     public ObservableList<Dispute> getDisputesAsObservableList() {
-        return disputeListService.getObservableList();
+        synchronized(disputeListService.getDisputeList()) {
+            return disputeListService.getObservableList();
+        }
     }
 
     public String getNrOfDisputes(boolean isBuyer, Contract contract) {