diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
deleted file mode 100644
index 9c3c8b4f..00000000
--- a/.github/workflows/build.yml
+++ /dev/null
@@ -1,76 +0,0 @@
-name: build
-
-on: [push, pull_request]
-
-jobs:
-  build:
-    strategy:
-      matrix:
-        os: [ubuntu-22.04, macos-11]
-        compiler: [gcc, clang]
-
-    runs-on: ${{ matrix.os }}
-
-    steps:
-    - uses: actions/checkout@v3
-    - name: Linux setup
-      if: runner.os == 'Linux'
-      run: |
-        sudo apt-get install \
-          g++-11 \
-          clang-12 \
-          autoconf \
-          automake \
-          autotools-dev \
-          autopoint \
-          libtool \
-          pkg-config \
-          libssl-dev \
-          libc-ares-dev \
-          zlib1g-dev \
-          libsqlite3-dev \
-          libssh2-1-dev \
-          libcppunit-dev
-    - name: MacOS setup
-      if: runner.os == 'macOS'
-      run: |
-        brew install cppunit gettext openssl libssh2 c-ares sqlite3 \
-          autoconf automake pkg-config libtool
-    - name: Setup clang (Linux)
-      if: runner.os == 'Linux' && matrix.compiler == 'clang'
-      run: |
-        echo 'CC=clang-12' >> $GITHUB_ENV
-        echo 'CXX=clang++-12' >> $GITHUB_ENV
-    - name: Setup clang (MacOS)
-      if: runner.os == 'macOS' && matrix.compiler == 'clang'
-      run: |
-        echo 'CC=clang' >> $GITHUB_ENV
-        echo 'CXX=clang++' >> $GITHUB_ENV
-    - name: Setup gcc (Linux)
-      if: runner.os == 'Linux' && matrix.compiler == 'gcc'
-      run: |
-        echo 'CC=gcc-11' >> $GITHUB_ENV
-        echo 'CXX=g++-11' >> $GITHUB_ENV
-    - name: Setup gcc (MacOS)
-      if: runner.os == 'macOS' && matrix.compiler == 'gcc'
-      run: |
-        echo 'CC=gcc' >> $GITHUB_ENV
-        echo 'CXX=g++' >> $GITHUB_ENV
-    - name: Libtool
-      run: |
-        autoreconf -i
-    - name: Configure autotools (Linux)
-      if: runner.os == 'Linux'
-      run: |
-        ./configure \
-          CPPFLAGS="-fsanitize=address" LDFLAGS="-fsanitize=address"
-    - name: Configure autotools (macOS)
-      if: runner.os == 'macOS'
-      run: |
-        ./configure \
-          --without-openssl --without-gnutls --with-appletls \
-          --disable-nls \
-          CPPFLAGS="-fsanitize=address" LDFLAGS="-fsanitize=address"
-    - name: Build aria2
-      run: |
-        make -j"$(nproc 2> /dev/null || sysctl -n hw.ncpu)" check