diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c1dcce6..0315478 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -5,7 +5,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        ruby-version: ['2.5', '2.7']
+        ruby-version: ['2.7']
     steps:
     - uses: actions/checkout@v2
     - uses: ruby/setup-ruby@v1
diff --git a/cookbook-release.gemspec b/cookbook-release.gemspec
index f7e4621..96ce737 100644
--- a/cookbook-release.gemspec
+++ b/cookbook-release.gemspec
@@ -6,7 +6,7 @@ require 'English'
 
 Gem::Specification.new do |spec|
   spec.name          = 'cookbook-release'
-  spec.version       = '1.9.0'
+  spec.version       = '2.0.0'
   spec.authors       = ['Grégoire Seux']
   spec.email         = 'g.seux@criteo.com'
   spec.summary       = 'Provide primitives (and rake tasks) to release a cookbook'
@@ -22,8 +22,8 @@ Gem::Specification.new do |spec|
   spec.add_dependency 'semantic'
   spec.add_dependency 'highline'
   spec.add_dependency 'mixlib-shellout'
-  # TODO: support Chef 17 and leverage knife gem at some point
-  spec.add_dependency 'chef', '>= 12.18.31', '< 17.0' # knife code has been moved to dedicated gem starting with Chef 17
+  spec.add_dependency 'chef', '>= 17'
+  spec.add_dependency 'knife', '>= 17'
   spec.add_dependency 'git'
   spec.add_dependency 'unicode-emoji'
 
diff --git a/lib/cookbook-release/supermarket.rb b/lib/cookbook-release/supermarket.rb
index 1034c5a..73f731a 100644
--- a/lib/cookbook-release/supermarket.rb
+++ b/lib/cookbook-release/supermarket.rb
@@ -1,7 +1,7 @@
 require 'chef/cookbook_loader'
 require 'chef/cookbook/cookbook_version_loader'
 require 'chef/cookbook_uploader'
-require 'chef/cookbook_site_streaming_uploader'
+require 'chef/knife/core/cookbook_site_streaming_uploader'
 require 'chef/mixin/shell_out'
 require 'json'
 
@@ -28,7 +28,7 @@ def publish_ck(category, path = nil)
       # client.pem key
       ::Chef::CookbookUploader.new(cookbook, rest: 'fake_rest').validate_cookbooks
 
-      tmp_cookbook_dir = Chef::CookbookSiteStreamingUploader.create_build_dir(cookbook)
+      tmp_cookbook_dir = ::Chef::Knife::Core::CookbookSiteStreamingUploader.create_build_dir(cookbook)
       begin
         shell_out!("tar -czf #{cookbook.name}.tgz #{cookbook.name}", :cwd => tmp_cookbook_dir)
       rescue StandardError => e
@@ -46,7 +46,7 @@ def publish_ck(category, path = nil)
     end
 
     def upload(filename, category)
-      http_resp = ::Chef::CookbookSiteStreamingUploader.post(
+      http_resp = ::Chef::Knife::Core::CookbookSiteStreamingUploader.post(
         @url,
         @user_id,
         @client_key,
diff --git a/spec/supermarket_spec.rb b/spec/supermarket_spec.rb
index 24d3ed3..b25d5ad 100644
--- a/spec/supermarket_spec.rb
+++ b/spec/supermarket_spec.rb
@@ -39,7 +39,7 @@ def init_cookbook
         body: "{}",
         code: "201"
       )
-      expect(::Chef::CookbookSiteStreamingUploader).
+      expect(::Chef::Knife::Core::CookbookSiteStreamingUploader).
         to receive(:post).
         with('http://a_url', 'a_name', 'a_file', anything()).
         and_return(response)