diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index fcdf102..dfce081 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -13,7 +13,7 @@ jobs:
       - name: setup go
         uses: actions/setup-go@v4
         with:
-          go-version: '1.21'
+          go-version-file: go.mod
       - name: build kubejob
         run: |
           go build -o kubejob ./cmd/kubejob
diff --git a/Dockerfile b/Dockerfile
index 4d3932e..86aafb6 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.21.0-bookworm
+FROM golang:1.22.0-bookworm
 
 ENV GOPATH /go
 WORKDIR /go/src/github.com/goccy/kubejob
@@ -11,6 +11,6 @@ COPY . .
 
 RUN go build -o /go/bin/kubejob-agent cmd/kubejob-agent/main.go
 
-FROM golang:1.21.0-bookworm AS agent
+FROM golang:1.22.0-bookworm AS agent
 
 COPY --from=0 /go/bin/kubejob-agent /bin/kubejob-agent
diff --git a/README.md b/README.md
index 16f5ad3..08ce6a5 100644
--- a/README.md
+++ b/README.md
@@ -50,7 +50,7 @@ job, err := kubejob.NewJobBuilder(cfg, "default").BuildWithJob(&batchv1.Job{
         Containers: []corev1.Container{
           {
             Name:    "test",
-            Image:   "golang:1.21.0-bookworm",
+            Image:   "golang:1.22.0-bookworm",
             Command: []string{"echo", "hello"},
           },
         },
@@ -104,7 +104,7 @@ job, err := kubejob.NewJobBuilder(cfg, "default").BuildWithJob(&batchv1.Job{
         Containers: []corev1.Container{
           {
             Name:    "main",
-            Image:   "golang:1.21.0-bookworm",
+            Image:   "golang:1.22.0-bookworm",
             Command: []string{"echo", "hello"},
           },
           {
@@ -232,7 +232,7 @@ Help Options:
 ### Example
 
 ```bash
-$ kubejob --image golang:1.21.0-bookworm -- go version
+$ kubejob --image golang:1.22.0-bookworm -- go version
 go version
-go version go1.21.0 linux/amd64
+go version go1.22.0 linux/amd64
 ```
diff --git a/job_cancel_test.go b/job_cancel_test.go
index 43f6826..9ddba85 100644
--- a/job_cancel_test.go
+++ b/job_cancel_test.go
@@ -15,7 +15,7 @@ import (
 )
 
 const (
-	goTestImageName = "golang:1.21.0-bookworm"
+	goTestImageName = "golang:1.22.0-bookworm"
 )
 
 type jobClientWithBeforeCancel struct {
diff --git a/job_test.go b/job_test.go
index becea93..3706f70 100644
--- a/job_test.go
+++ b/job_test.go
@@ -19,7 +19,7 @@ import (
 )
 
 const (
-	goImageName = "golang:1.21.0-bookworm"
+	goImageName = "golang:1.22.0-bookworm"
 )
 
 var (
diff --git a/testdata/config/manifest.yaml b/testdata/config/manifest.yaml
index 3291339..82623aa 100644
--- a/testdata/config/manifest.yaml
+++ b/testdata/config/manifest.yaml
@@ -70,7 +70,7 @@ spec:
       serviceAccountName: kubejob
       containers:
         - name: kubejob
-          image: golang:1.21.0-bookworm
+          image: golang:1.22.0-bookworm
           workingDir: /go/src/kubejob
           command:
             - tail