diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 97f832c..976f86d 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -13,7 +13,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v3
         with:
-          go-version: '1.20'
+          go-version: '1.21'
 
       - name: Test
         run: go test -v ./...
@@ -24,5 +24,5 @@ jobs:
       - name: Staticcheck
         uses: dominikh/staticcheck-action@v1.3.0
         with:
-          version: '2023.1.2'
+          version: '2023.1.6'
           install-go: false
diff --git a/go.mod b/go.mod
index bc6e7e2..5cff38b 100644
--- a/go.mod
+++ b/go.mod
@@ -1,3 +1,3 @@
 module github.com/petaki/inertia-go
 
-go 1.20
+go 1.21