diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..30381cb
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,36 @@
+name: CI
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Check out code into the Go module directory
+      uses: actions/checkout@v4
+
+    - name: Set up Go
+      uses: actions/setup-go@v4
+      with:
+        go-version: 1.21
+
+    - name: Use cache
+      uses: actions/cache@v3
+      with:
+        path: ~/go/pkg/mod
+        key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
+        restore-keys: |
+          ${{ runner.os }}-go-
+
+    - name: Download Modules
+      if: steps.cache.outputs.cache-hit != 'true'
+      run: go mod download
+
+    - name: Build
+      run: |
+        go build -o gohakai ./...
+        rm gohakai
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 0e44cfd..85d6492 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -11,15 +11,15 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       -
         name: Unshallow
         run: git fetch --prune --unshallow
       -
         name: Set up Go
-        uses: actions/setup-go@v3
+        uses: actions/setup-go@v4
         with:
-          go-version: 1.19
+          go-version: 1.21
       -
         name: Run GoReleaser
         uses: goreleaser/goreleaser-action@v4
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index dd2aadc..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,22 +0,0 @@
-language: go
-sudo: false
-
-matrix:
-    include:
-        - go: 1.9
-        - go: "1.13"
-        - go: tip
-
-install:
-    - make update-module
-    - go get -u -v golang.org/x/tools/cmd/goimports
-
-before_script:
-    - goimports -d .
-    - gofmt -l .
-
-script:
-    - go build -v .
-
-notifications:
-    email: false
diff --git a/README.md b/README.md
index 33f244a..c75c55c 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,4 @@
-## gohakai
-
-[![Travis Build Status](https://travis-ci.org/KLab/gohakai.svg?branch=master)](https://travis-ci.org/KLab/gohakai)
+## gohakai [![CI](https://github.com/KLab/gohakai/actions/workflows/ci.yml/badge.svg)](https://github.com/KLab/gohakai/actions/workflows/ci.yml)
 
 Internet hakai with Go.
 
diff --git a/go.mod b/go.mod
index 8f9fb66..fcd1b07 100644
--- a/go.mod
+++ b/go.mod
@@ -5,7 +5,7 @@ go 1.19
 require (
 	golang.org/x/crypto v0.14.0
 	golang.org/x/net v0.17.0
-	gopkg.in/yaml.v2 v2.2.8
+	gopkg.in/yaml.v2 v2.4.0
 )
 
 require (
diff --git a/go.sum b/go.sum
index c25327b..ac4953f 100644
--- a/go.sum
+++ b/go.sum
@@ -9,5 +9,5 @@ golang.org/x/text v0.13.0 h1:ablQoSUd0tRdKxZewP80B+BaqeKJuVhuRxj/dkrun3k=
 golang.org/x/text v0.13.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
-gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
+gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=