diff --git a/.github/workflows/go.yml b/.github/workflows/go.yml
index 08d4d24..7f7e988 100644
--- a/.github/workflows/go.yml
+++ b/.github/workflows/go.yml
@@ -16,7 +16,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v2
       with:
-        go-version: 1.17
+        go-version: 1.18
 
     - name: Build
       run: go build -v ./...
diff --git a/go.mod b/go.mod
index 692c9d8..7858faf 100644
--- a/go.mod
+++ b/go.mod
@@ -1,3 +1,3 @@
 module github.com/echgo/notifile
 
-go 1.17
+go 1.18