diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index a127b4a..ae074da 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -10,7 +10,7 @@ jobs:
   test-bot:
     strategy:
       matrix:
-        os: [macos-14, macos-15, macos-26]
+        os: [macos-13, macos-14, macos-15, macos-26]
     runs-on: ${{ matrix.os }}
     steps:
       - name: Set up Homebrew
diff --git a/Formula/s3fs-mac.rb b/Formula/s3fs-mac.rb
index 71639d3..8c93604 100644
--- a/Formula/s3fs-mac.rb
+++ b/Formula/s3fs-mac.rb
@@ -34,12 +34,19 @@ class S3fsMac < Formula
   end
 
   def install
-    setup_fuse3
+    setup_fuse
     system "./autogen.sh"
     system "./configure", "--with-gnutls", *std_configure_args
     system "make", "install"
   end
 
+  def caveats
+    <<~EOS
+      This is the final version that supports FUSE 2.
+      Further updates require a macOS FUSE 3 implementation.
+    EOS
+  end
+
   test do
     system "#{bin}/s3fs", "--version"
   end