diff --git a/liteflow-core/src/main/java/com/yomahub/liteflow/flow/parallel/CompletableFutureExpand.java b/liteflow-core/src/main/java/com/yomahub/liteflow/flow/parallel/CompletableFutureExpand.java
index 37ba6dbb6..f4a29f5c7 100644
--- a/liteflow-core/src/main/java/com/yomahub/liteflow/flow/parallel/CompletableFutureExpand.java
+++ b/liteflow-core/src/main/java/com/yomahub/liteflow/flow/parallel/CompletableFutureExpand.java
@@ -17,7 +17,15 @@ public class CompletableFutureExpand {
             return future;
         }
 
-        return future.whenComplete(new Canceller(Delayer.delay(new Timeout<>(future, timeoutDefaultObj), timeout, unit)));
+        return future.whenComplete(
+                new Canceller(
+                        Delayer.delay(
+                                new Timeout<>(future, timeoutDefaultObj),
+                                timeout,
+                                unit
+                        )
+                )
+        );
     }
 
     /**
diff --git a/liteflow-core/src/main/java/com/yomahub/liteflow/flow/parallel/strategy/ParallelStrategyExecutor.java b/liteflow-core/src/main/java/com/yomahub/liteflow/flow/parallel/strategy/ParallelStrategyExecutor.java
index 8c9333bd1..398b71749 100644
--- a/liteflow-core/src/main/java/com/yomahub/liteflow/flow/parallel/strategy/ParallelStrategyExecutor.java
+++ b/liteflow-core/src/main/java/com/yomahub/liteflow/flow/parallel/strategy/ParallelStrategyExecutor.java
@@ -215,7 +215,7 @@ public abstract class ParallelStrategyExecutor {
                 return whenFutureObj;
             } catch (InterruptedException | ExecutionException e) {
                 interrupted[0] = true;
-                return null;
+                return WhenFutureObj.fail("Unknown", e);
             }
         }).collect(Collectors.toList());
 
diff --git a/pom.xml b/pom.xml
index ae1d9c243..7aae9ff38 100644
--- a/pom.xml
+++ b/pom.xml
@@ -39,7 +39,7 @@
 	</scm>
 
 	<properties>
-		<revision>2.12.2.2</revision>
+		<revision>2.12.2.3</revision>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
 		<maven.compiler.source>8</maven.compiler.source>