diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 86508b9..138fe1e 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        ruby-version: ["2.7", "3.0", "3.1"]
+        ruby-version: ["2.7", "3.0", "3.1", "3.2"]
     services:
       ftp:
         image: delfer/alpine-ftp-server
@@ -34,12 +34,13 @@ jobs:
         with:
           ruby-version: ${{ matrix.ruby-version }}
           bundler-cache: true
-      - name: Set up Google Cloud SDK
-        uses: google-github-actions/setup-gcloud@master
+      - id: "auth"
+        uses: "google-github-actions/auth@v1"
         with:
           project_id: ${{ secrets.GCP_PROJECT_ID }}
-          service_account_key: ${{ secrets.GCP_SA_KEY }}
-          export_default_credentials: true
+          credentials_json: ${{ secrets.GCP_SA_KEY }}
+      - name: Set up Google Cloud SDK
+        uses: google-github-actions/setup-gcloud@v1
       - name: Configure AWS Credentials
         uses: aws-actions/configure-aws-credentials@v1
         with:
diff --git a/.version b/.version
index f374f66..2003b63 100644
--- a/.version
+++ b/.version
@@ -1 +1 @@
-0.9.1
+0.9.2
diff --git a/Gemfile.lock b/Gemfile.lock
index dc54d5c..dbb0109 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,97 +1,78 @@
 PATH
   remote: core
   specs:
-    bfs (0.9.1)
+    bfs (0.9.2)
 
 PATH
   remote: ftp
   specs:
-    bfs-ftp (0.9.1)
-      bfs (= 0.9.1)
-      net-ftp (>= 0.1.3)
+    bfs-ftp (0.9.2)
+      bfs (= 0.9.2)
+      net-ftp (< 0.2)
       net-ftp-list
 
 PATH
   remote: gs
   specs:
-    bfs-gs (0.9.1)
-      bfs (= 0.9.1)
+    bfs-gs (0.9.2)
+      bfs (= 0.9.2)
       google-cloud-storage (~> 1.18)
 
 PATH
   remote: s3
   specs:
-    bfs-s3 (0.9.1)
+    bfs-s3 (0.9.2)
       aws-sdk-s3 (~> 1.38)
-      bfs (= 0.9.1)
+      bfs (= 0.9.2)
 
 PATH
   remote: scp
   specs:
-    bfs-scp (0.9.1)
-      bfs (= 0.9.1)
+    bfs-scp (0.9.2)
+      bfs (= 0.9.2)
       net-scp
 
 PATH
   remote: sftp
   specs:
-    bfs-sftp (0.9.1)
-      bfs (= 0.9.1)
+    bfs-sftp (0.9.2)
+      bfs (= 0.9.2)
       net-sftp
 
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.8.0)
-      public_suffix (>= 2.0.2, < 5.0)
+    addressable (2.8.4)
+      public_suffix (>= 2.0.2, < 6.0)
     ast (2.4.2)
     aws-eventstream (1.2.0)
-    aws-partitions (1.568.0)
-    aws-sdk-core (3.130.0)
+    aws-partitions (1.744.0)
+    aws-sdk-core (3.171.0)
       aws-eventstream (~> 1, >= 1.0.2)
-      aws-partitions (~> 1, >= 1.525.0)
+      aws-partitions (~> 1, >= 1.651.0)
+      aws-sigv4 (~> 1.5)
+      jmespath (~> 1, >= 1.6.1)
+    aws-sdk-kms (1.63.0)
+      aws-sdk-core (~> 3, >= 3.165.0)
       aws-sigv4 (~> 1.1)
-      jmespath (~> 1.0)
-    aws-sdk-kms (1.55.0)
-      aws-sdk-core (~> 3, >= 3.127.0)
-      aws-sigv4 (~> 1.1)
-    aws-sdk-s3 (1.113.0)
-      aws-sdk-core (~> 3, >= 3.127.0)
+    aws-sdk-s3 (1.120.1)
+      aws-sdk-core (~> 3, >= 3.165.0)
       aws-sdk-kms (~> 1)
       aws-sigv4 (~> 1.4)
-    aws-sigv4 (1.4.0)
+    aws-sigv4 (1.5.2)
       aws-eventstream (~> 1, >= 1.0.2)
     bcrypt_pbkdf (1.1.0)
-    date (3.2.2)
+    date (3.3.3)
     declarative (0.0.20)
     diff-lcs (1.5.0)
     digest-crc (0.6.4)
       rake (>= 12.0.0, < 14.0.0)
     ed25519 (1.3.0)
-    faraday (1.10.0)
-      faraday-em_http (~> 1.0)
-      faraday-em_synchrony (~> 1.0)
-      faraday-excon (~> 1.1)
-      faraday-httpclient (~> 1.0)
-      faraday-multipart (~> 1.0)
-      faraday-net_http (~> 1.0)
-      faraday-net_http_persistent (~> 1.0)
-      faraday-patron (~> 1.0)
-      faraday-rack (~> 1.0)
-      faraday-retry (~> 1.0)
+    faraday (2.7.4)
+      faraday-net_http (>= 2.0, < 3.1)
       ruby2_keywords (>= 0.0.4)
-    faraday-em_http (1.0.0)
-    faraday-em_synchrony (1.0.0)
-    faraday-excon (1.1.0)
-    faraday-httpclient (1.0.1)
-    faraday-multipart (1.0.3)
-      multipart-post (>= 1.2, < 3)
-    faraday-net_http (1.0.1)
-    faraday-net_http_persistent (1.2.0)
-    faraday-patron (1.0.0)
-    faraday-rack (1.0.0)
-    faraday-retry (1.0.3)
-    google-apis-core (0.4.2)
+    faraday-net_http (3.0.2)
+    google-apis-core (0.11.0)
       addressable (~> 2.5, >= 2.5.1)
       googleauth (>= 0.16.2, < 2.a)
       httpclient (>= 2.8.1, < 3.a)
@@ -100,25 +81,25 @@ GEM
       retriable (>= 2.0, < 4.a)
       rexml
       webrick
-    google-apis-iamcredentials_v1 (0.10.0)
-      google-apis-core (>= 0.4, < 2.a)
-    google-apis-storage_v1 (0.11.0)
-      google-apis-core (>= 0.4, < 2.a)
+    google-apis-iamcredentials_v1 (0.17.0)
+      google-apis-core (>= 0.11.0, < 2.a)
+    google-apis-storage_v1 (0.19.0)
+      google-apis-core (>= 0.9.0, < 2.a)
     google-cloud-core (1.6.0)
       google-cloud-env (~> 1.0)
       google-cloud-errors (~> 1.0)
-    google-cloud-env (1.5.0)
-      faraday (>= 0.17.3, < 2.0)
-    google-cloud-errors (1.2.0)
-    google-cloud-storage (1.36.1)
+    google-cloud-env (1.6.0)
+      faraday (>= 0.17.3, < 3.0)
+    google-cloud-errors (1.3.1)
+    google-cloud-storage (1.44.0)
       addressable (~> 2.8)
       digest-crc (~> 0.4)
       google-apis-iamcredentials_v1 (~> 0.1)
-      google-apis-storage_v1 (~> 0.1)
+      google-apis-storage_v1 (~> 0.19.0)
       google-cloud-core (~> 1.6)
       googleauth (>= 0.16.2, < 2.a)
       mini_mime (~> 1.0)
-    googleauth (1.1.2)
+    googleauth (1.5.1)
       faraday (>= 0.17.3, < 3.a)
       jwt (>= 1.4, < 3.0)
       memoist (~> 0.16)
@@ -126,89 +107,91 @@ GEM
       os (>= 0.9, < 2.0)
       signet (>= 0.16, < 2.a)
     httpclient (2.8.3)
-    io-wait (0.2.1)
-    jmespath (1.6.1)
-    jwt (2.3.0)
+    jmespath (1.6.2)
+    json (2.6.3)
+    jwt (2.7.0)
     memoist (0.16.2)
     mini_mime (1.1.2)
     multi_json (1.15.0)
-    multipart-post (2.1.1)
     net-ftp (0.1.3)
       net-protocol
       time
     net-ftp-list (3.3.0)
-    net-protocol (0.1.2)
-      io-wait
+    net-protocol (0.2.1)
       timeout
-    net-scp (3.0.0)
-      net-ssh (>= 2.6.5, < 7.0.0)
-    net-sftp (3.0.0)
-      net-ssh (>= 5.0.0, < 7.0.0)
-    net-ssh (6.1.0)
+    net-scp (4.0.0)
+      net-ssh (>= 2.6.5, < 8.0.0)
+    net-sftp (4.0.0)
+      net-ssh (>= 5.0.0, < 8.0.0)
+    net-ssh (7.1.0)
     os (1.1.4)
-    parallel (1.21.0)
-    parser (3.1.1.0)
+    parallel (1.22.1)
+    parser (3.2.2.0)
       ast (~> 2.4.1)
-    public_suffix (4.0.6)
+    public_suffix (5.0.1)
     rainbow (3.1.1)
     rake (13.0.6)
-    regexp_parser (2.2.1)
-    representable (3.1.1)
+    regexp_parser (2.7.0)
+    representable (3.2.0)
       declarative (< 0.1.0)
       trailblazer-option (>= 0.1.1, < 0.2.0)
       uber (< 0.2.0)
     retriable (3.1.2)
     rexml (3.2.5)
-    rspec (3.11.0)
-      rspec-core (~> 3.11.0)
-      rspec-expectations (~> 3.11.0)
-      rspec-mocks (~> 3.11.0)
-    rspec-core (3.11.0)
-      rspec-support (~> 3.11.0)
-    rspec-expectations (3.11.0)
+    rspec (3.12.0)
+      rspec-core (~> 3.12.0)
+      rspec-expectations (~> 3.12.0)
+      rspec-mocks (~> 3.12.0)
+    rspec-core (3.12.1)
+      rspec-support (~> 3.12.0)
+    rspec-expectations (3.12.2)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.11.0)
-    rspec-mocks (3.11.0)
+      rspec-support (~> 3.12.0)
+    rspec-mocks (3.12.5)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.11.0)
-    rspec-support (3.11.0)
-    rubocop (1.26.0)
+      rspec-support (~> 3.12.0)
+    rspec-support (3.12.0)
+    rubocop (1.50.0)
+      json (~> 2.3)
       parallel (~> 1.10)
-      parser (>= 3.1.0.0)
+      parser (>= 3.2.0.0)
       rainbow (>= 2.2.2, < 4.0)
       regexp_parser (>= 1.8, < 3.0)
-      rexml
-      rubocop-ast (>= 1.16.0, < 2.0)
+      rexml (>= 3.2.5, < 4.0)
+      rubocop-ast (>= 1.28.0, < 2.0)
       ruby-progressbar (~> 1.7)
-      unicode-display_width (>= 1.4.0, < 3.0)
-    rubocop-ast (1.16.0)
-      parser (>= 3.1.1.0)
-    rubocop-bsm (0.6.0)
+      unicode-display_width (>= 2.4.0, < 3.0)
+    rubocop-ast (1.28.0)
+      parser (>= 3.2.1.0)
+    rubocop-bsm (0.6.1)
       rubocop (~> 1.0)
       rubocop-performance
       rubocop-rake
       rubocop-rspec
-    rubocop-performance (1.13.3)
+    rubocop-capybara (2.17.1)
+      rubocop (~> 1.41)
+    rubocop-performance (1.17.1)
       rubocop (>= 1.7.0, < 2.0)
       rubocop-ast (>= 0.4.0)
     rubocop-rake (0.6.0)
       rubocop (~> 1.0)
-    rubocop-rspec (2.9.0)
-      rubocop (~> 1.19)
-    ruby-progressbar (1.11.0)
+    rubocop-rspec (2.19.0)
+      rubocop (~> 1.33)
+      rubocop-capybara (~> 2.17)
+    ruby-progressbar (1.13.0)
     ruby2_keywords (0.0.5)
-    signet (0.16.1)
+    signet (0.17.0)
       addressable (~> 2.8)
-      faraday (>= 0.17.5, < 3.0)
+      faraday (>= 0.17.5, < 3.a)
       jwt (>= 1.5, < 3.0)
       multi_json (~> 1.10)
-    time (0.2.0)
+    time (0.2.2)
       date
-    timeout (0.2.0)
+    timeout (0.3.2)
     trailblazer-option (0.1.2)
     uber (0.1.0)
-    unicode-display_width (2.1.0)
-    webrick (1.7.0)
+    unicode-display_width (2.4.2)
+    webrick (1.8.1)
 
 PLATFORMS
   ruby
@@ -228,4 +211,4 @@ DEPENDENCIES
   webrick
 
 BUNDLED WITH
-   2.3.9
+   2.3.16
diff --git a/core/bfs.gemspec b/core/bfs.gemspec
index b218e1f..84ef2ca 100644
--- a/core/bfs.gemspec
+++ b/core/bfs.gemspec
@@ -13,7 +13,6 @@ Gem::Specification.new do |s|
 
   s.executables   = []
   s.files         = `git ls-files`.split("\n")
-  s.test_files    = `git ls-files -- spec/*`.split("\n")
   s.require_paths = ['lib']
   s.required_ruby_version = '>= 2.7'
   s.metadata['rubygems_mfa_required'] = 'true'
diff --git a/ftp/bfs-ftp.gemspec b/ftp/bfs-ftp.gemspec
index 11ed97b..3ff25e1 100644
--- a/ftp/bfs-ftp.gemspec
+++ b/ftp/bfs-ftp.gemspec
@@ -13,12 +13,11 @@ Gem::Specification.new do |s|
 
   s.executables   = []
   s.files         = `git ls-files`.split("\n")
-  s.test_files    = `git ls-files -- spec/*`.split("\n")
   s.require_paths = ['lib']
   s.required_ruby_version = '>= 2.7'
 
   s.add_dependency 'bfs', s.version
-  s.add_dependency 'net-ftp', '>= 0.1.3'
+  s.add_dependency 'net-ftp', '< 0.2'
   s.add_dependency 'net-ftp-list'
   s.metadata['rubygems_mfa_required'] = 'true'
 end
diff --git a/gs/bfs-gs.gemspec b/gs/bfs-gs.gemspec
index fb833fe..85a34bf 100644
--- a/gs/bfs-gs.gemspec
+++ b/gs/bfs-gs.gemspec
@@ -13,7 +13,6 @@ Gem::Specification.new do |s|
 
   s.executables   = []
   s.files         = `git ls-files`.split("\n")
-  s.test_files    = `git ls-files -- spec/*`.split("\n")
   s.require_paths = ['lib']
   s.required_ruby_version = '>= 2.7'
 
diff --git a/s3/bfs-s3.gemspec b/s3/bfs-s3.gemspec
index 5623b65..cbdc16e 100644
--- a/s3/bfs-s3.gemspec
+++ b/s3/bfs-s3.gemspec
@@ -13,7 +13,6 @@ Gem::Specification.new do |s|
 
   s.executables   = []
   s.files         = `git ls-files`.split("\n")
-  s.test_files    = `git ls-files -- spec/*`.split("\n")
   s.require_paths = ['lib']
   s.required_ruby_version = '>= 2.7'
 
diff --git a/scp/bfs-scp.gemspec b/scp/bfs-scp.gemspec
index 5abb0b5..9083404 100644
--- a/scp/bfs-scp.gemspec
+++ b/scp/bfs-scp.gemspec
@@ -13,7 +13,6 @@ Gem::Specification.new do |s|
 
   s.executables   = []
   s.files         = `git ls-files`.split("\n")
-  s.test_files    = `git ls-files -- spec/*`.split("\n")
   s.require_paths = ['lib']
   s.required_ruby_version = '>= 2.7'
 
diff --git a/sftp/bfs-sftp.gemspec b/sftp/bfs-sftp.gemspec
index da53b17..b42a0d8 100644
--- a/sftp/bfs-sftp.gemspec
+++ b/sftp/bfs-sftp.gemspec
@@ -13,7 +13,6 @@ Gem::Specification.new do |s|
 
   s.executables   = []
   s.files         = `git ls-files`.split("\n")
-  s.test_files    = `git ls-files -- spec/*`.split("\n")
   s.require_paths = ['lib']
   s.required_ruby_version = '>= 2.7'
 
diff --git a/spec/support/shared.rb b/spec/support/shared.rb
index 1c73081..41de044 100644
--- a/spec/support/shared.rb
+++ b/spec/support/shared.rb
@@ -20,18 +20,9 @@ def be_recent_time
 
   it 'lists' do
     expect(subject.ls).to be_a(Enumerator)
-    expect(subject.ls.to_a).to match_array [
-      'a/b.txt',
-      'a/b/c.txt',
-      'a/b/c/d.txt',
-      'a/b/c/d/e.txt',
-    ]
-    expect(subject.ls('**/c*').to_a).to match_array [
-      'a/b/c.txt',
-    ]
-    expect(subject.ls('a/b/*/*').to_a).to match_array [
-      'a/b/c/d.txt',
-    ]
+    expect(subject.ls.to_a).to contain_exactly('a/b.txt', 'a/b/c.txt', 'a/b/c/d.txt', 'a/b/c/d/e.txt')
+    expect(subject.ls('**/c*').to_a).to contain_exactly('a/b/c.txt')
+    expect(subject.ls('a/b/*/*').to_a).to contain_exactly('a/b/c/d.txt')
     expect(subject.ls('x/**').to_a).to be_empty
   end
 
@@ -125,11 +116,7 @@ def be_recent_time
   it 'removes' do
     subject.rm('a/b/c.txt')
     subject.rm('not/found.txt')
-    expect(subject.ls).to match_array [
-      'a/b.txt',
-      'a/b/c/d.txt',
-      'a/b/c/d/e.txt',
-    ]
+    expect(subject.ls).to contain_exactly('a/b.txt', 'a/b/c/d.txt', 'a/b/c/d/e.txt')
   end
 
   it 'copies' do