diff --git a/.github/workflows/go.yml b/.github/workflows/go.yml
index f8bbc92..e5fed27 100644
--- a/.github/workflows/go.yml
+++ b/.github/workflows/go.yml
@@ -10,12 +10,12 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macOS-latest, windows-latest]
-        go: ['1.18.x', '1.20.x']
+        go: ['1.18.x', '1.22.x']
         
     steps:
 
       - name: Check out code into the Go module directory
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Set up Go ${{ matrix.go }}
         uses: actions/setup-go@v4
diff --git a/events.go b/events.go
index 84f8b08..4385286 100644
--- a/events.go
+++ b/events.go
@@ -1,3 +1,5 @@
+// SPDX-FileCopyrightText: 2019-2024 caixw
+//
 // SPDX-License-Identifier: MIT
 
 // Package events 提供了简单的事件发布订阅功能
diff --git a/events_test.go b/events_test.go
index af72d86..9068c5e 100644
--- a/events_test.go
+++ b/events_test.go
@@ -1,3 +1,5 @@
+// SPDX-FileCopyrightText: 2019-2024 caixw
+//
 // SPDX-License-Identifier: MIT
 
 package events
@@ -7,7 +9,7 @@ import (
 	"testing"
 	"time"
 
-	"github.com/issue9/assert/v3"
+	"github.com/issue9/assert/v4"
 )
 
 var (
diff --git a/go.mod b/go.mod
index ef2d55b..b26343b 100644
--- a/go.mod
+++ b/go.mod
@@ -1,5 +1,5 @@
 module github.com/issue9/events
 
-require github.com/issue9/assert/v3 v3.0.5
+require github.com/issue9/assert/v4 v4.1.1
 
 go 1.18
diff --git a/go.sum b/go.sum
index 45d127e..e03cb71 100644
--- a/go.sum
+++ b/go.sum
@@ -1,2 +1,2 @@
-github.com/issue9/assert/v3 v3.0.5 h1:Mlz/4v2Ph6ZDm3Fk3A1jhitH4M/2dkHeHNKe7tTZdH8=
-github.com/issue9/assert/v3 v3.0.5/go.mod h1:yft/uaskRpwQTyBT3n1zRl91SR1wNlO4fLZHzOa4bdM=
+github.com/issue9/assert/v4 v4.1.1 h1:OhPE8SB8n/qZCNGLQa+6MQtr/B3oON0JAVj68k8jJlc=
+github.com/issue9/assert/v4 v4.1.1/go.mod h1:v7qDRXi7AsaZZNh8eAK2rkLJg5/clztqQGA1DRv9Lv4=