diff --git a/.rubocop.yml b/.rubocop.yml
index 53e4b99..e311f94 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -1,5 +1,5 @@
 AllCops:
-  TargetRubyVersion: 2.3
+  TargetRubyVersion: 2.7
 
 Lint/RaiseException:
   Enabled: true
diff --git a/Gemfile.lock b/Gemfile.lock
index c846c32..11ff300 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,8 +1,8 @@
 PATH
   remote: .
   specs:
-    quayio-scanner (0.3.2)
-      docker-api (~> 1.33)
+    quayio-scanner (0.4.0)
+      docker-api (~> 2.4)
       rest-client (~> 2.1)
       sensu-plugin (~> 4.0)
 
@@ -10,63 +10,66 @@ GEM
   remote: https://rubygems.org/
   specs:
     ast (2.4.2)
-    diff-lcs (1.5.0)
-    docker-api (1.34.2)
-      excon (>= 0.47.0)
+    diff-lcs (1.5.1)
+    docker-api (2.4.0)
+      excon (>= 0.64.0)
       multi_json
-    domain_name (0.5.20190701)
-      unf (>= 0.0.5, < 1.0.0)
-    excon (0.92.3)
+    domain_name (0.6.20240107)
+    excon (1.2.3)
     http-accept (1.7.0)
-    http-cookie (1.0.5)
+    http-cookie (1.0.8)
       domain_name (~> 0.5)
-    jaro_winkler (1.5.4)
-    json (2.6.2)
-    mime-types (3.4.1)
+    json (2.9.1)
+    logger (1.6.5)
+    mime-types (3.6.0)
+      logger
       mime-types-data (~> 3.2015)
-    mime-types-data (3.2022.0105)
+    mime-types-data (3.2025.0204)
     mixlib-cli (1.7.0)
     multi_json (1.15.0)
     netrc (0.11.0)
-    parallel (1.22.1)
-    parser (3.1.2.0)
+    parallel (1.26.3)
+    parser (3.3.7.1)
       ast (~> 2.4.1)
+      racc
+    racc (1.8.1)
     rainbow (3.1.1)
-    rake (13.0.6)
+    rake (13.2.1)
+    regexp_parser (2.10.0)
     rest-client (2.1.0)
       http-accept (>= 1.7.0, < 2.0)
       http-cookie (>= 1.0.2, < 2.0)
       mime-types (>= 1.16, < 4.0)
       netrc (~> 0.8)
-    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)
+    rexml (3.4.0)
+    rspec (3.13.0)
+      rspec-core (~> 3.13.0)
+      rspec-expectations (~> 3.13.0)
+      rspec-mocks (~> 3.13.0)
+    rspec-core (3.13.3)
+      rspec-support (~> 3.13.0)
+    rspec-expectations (3.13.3)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.11.0)
-    rspec-mocks (3.11.1)
+      rspec-support (~> 3.13.0)
+    rspec-mocks (3.13.2)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.11.0)
-    rspec-support (3.11.0)
-    rubocop (0.81.0)
-      jaro_winkler (~> 1.5.1)
+      rspec-support (~> 3.13.0)
+    rspec-support (3.13.2)
+    rubocop (0.93.1)
       parallel (~> 1.10)
-      parser (>= 2.7.0.1)
+      parser (>= 2.7.1.5)
       rainbow (>= 2.2.2, < 4.0)
+      regexp_parser (>= 1.8)
       rexml
+      rubocop-ast (>= 0.6.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 1.4.0, < 2.0)
-    ruby-progressbar (1.11.0)
+    rubocop-ast (1.38.0)
+      parser (>= 3.3.1.0)
+    ruby-progressbar (1.13.0)
     sensu-plugin (4.0.0)
       json (< 3.0.0)
       mixlib-cli (~> 1.5)
-    unf (0.1.4)
-      unf_ext
-    unf_ext (0.0.8.2)
     unicode-display_width (1.8.0)
 
 PLATFORMS
@@ -77,7 +80,7 @@ DEPENDENCIES
   quayio-scanner!
   rake (~> 13.0)
   rspec (~> 3.7)
-  rubocop (~> 0.49, <= 0.81)
+  rubocop (~> 0.93)
 
 BUNDLED WITH
    2.1.4
diff --git a/lib/quayio/scanner/repository.rb b/lib/quayio/scanner/repository.rb
index 90dbe83..df60c9e 100644
--- a/lib/quayio/scanner/repository.rb
+++ b/lib/quayio/scanner/repository.rb
@@ -23,22 +23,20 @@ def fetch_manifest_ref
 
       def api_call(uri)
         (1..Float::INFINITY).each do |attempt|
-          begin
-            response = RestClient.get(
-              "https://quay.io/api/v1/repository/#{org}/#{repo}#{uri}",
-              authorization: "Bearer #{quayio_token}",
-              accept: :json,
-              open_timeout: 15
-            )
-            return JSON.parse(response)
-          rescue RestClient::Exception => e
-            raise e if attempt >= MAX_ATTEMPTS
-
-            # retry later, if we hit cdn rate limiting or on connection errors
-            raise e unless e.http_code == 520 || e.http_code.nil?
-
-            sleep(rand(10))
-          end
+          response = RestClient.get(
+            "https://quay.io/api/v1/repository/#{org}/#{repo}#{uri}",
+            authorization: "Bearer #{quayio_token}",
+            accept: :json,
+            open_timeout: 15
+          )
+          return JSON.parse(response)
+        rescue RestClient::Exception => e
+          raise e if attempt >= MAX_ATTEMPTS
+
+          # retry later, if we hit cdn rate limiting or on connection errors
+          raise e unless e.http_code == 520 || e.http_code.nil?
+
+          sleep(rand(10))
         end
       end
     end
diff --git a/quayio-scanner.gemspec b/quayio-scanner.gemspec
index d365fd6..475b1d8 100644
--- a/quayio-scanner.gemspec
+++ b/quayio-scanner.gemspec
@@ -13,7 +13,7 @@ Gem::Specification.new do |spec|
   spec.homepage      = 'https://github.com/aboutsource/quayio-scanner'
   spec.license       = 'MIT'
 
-  spec.required_ruby_version = '>= 2.3.0'
+  spec.required_ruby_version = '>= 2.7.0'
 
   spec.files = `git ls-files -z`.split("\x0").reject do |f|
     f.match(%r{^(test|spec|features)/})
@@ -21,11 +21,11 @@ Gem::Specification.new do |spec|
   spec.executables   = Dir.glob('bin/**/*.rb').map { |f| File.basename(f) }
   spec.require_paths = ['lib']
 
-  spec.add_dependency 'docker-api', '~> 1.33'
+  spec.add_dependency 'docker-api', '~> 2.4'
   spec.add_dependency 'rest-client', '~> 2.1'
   spec.add_dependency 'sensu-plugin', '~> 4.0'
   spec.add_development_dependency 'bundler', '~> 2.1'
   spec.add_development_dependency 'rake', '~> 13.0'
   spec.add_development_dependency 'rspec', '~> 3.7'
-  spec.add_development_dependency 'rubocop', '~> 0.49', '<= 0.81'
+  spec.add_development_dependency 'rubocop', '~> 0.93'
 end