diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index eb4bfe6..9ae881f 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -5,7 +5,15 @@
 
 version: 2
 updates:
-  - package-ecosystem: "gomod" # See documentation for possible values
-    directory: "/" # Location of package manifests
+  - package-ecosystem: gomod
+    directory: /
     schedule:
-      interval: "daily"
+      interval: daily
+    reviewers:
+      - ikawaha
+  - package-ecosystem: github-actions
+    directory: /
+    schedule:
+      interval: daily
+    reviewers:
+      - ikawaha
\ No newline at end of file
diff --git a/.github/workflows/go.yml b/.github/workflows/go.yml
index 5a817e5..ad0d738 100644
--- a/.github/workflows/go.yml
+++ b/.github/workflows/go.yml
@@ -17,12 +17,12 @@ jobs:
 
     steps:
       - name: Check out code into the Go module directory
-        uses: actions/checkout@v2
+        uses: actions/checkout@4.1.7
         with:
           path: src/github.com/ikawaha/kanji
 
       - name: Set up Go 1.x
-        uses: actions/setup-go@v2
+        uses: actions/setup-go@@v5.0.1
         with:
           go-version-file: go.mod