diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 9f42181..bc446f0 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -5,7 +5,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        ruby: ['2.6', '2.7', '3.0', '3.1', '3.2', '3.3']
+        ruby: ['2.7', '3.0', '3.1', '3.2', '3.3']
       fail-fast: false
     steps:
       - name: Checkout
diff --git a/lib/ro_crate/writer.rb b/lib/ro_crate/writer.rb
index e53c829..c1c3576 100644
--- a/lib/ro_crate/writer.rb
+++ b/lib/ro_crate/writer.rb
@@ -44,7 +44,7 @@ def write(dir, overwrite: true, skip_preview: false)
     # @param destination [String, ::File] The destination where to write the RO-Crate zip.
     # @param skip_preview [Boolean] Whether or not to skip generation of the RO-Crate preview HTML file.
     def write_zip(destination, skip_preview: false)
-      Zip::File.open(destination, Zip::File::CREATE) do |zip|
+      Zip::File.open(destination, create: true) do |zip|
         @crate.payload.each do |path, entry|
           next if entry.directory?
           next if skip_preview && entry&.source.is_a?(ROCrate::PreviewGenerator)
diff --git a/ro_crate.gemspec b/ro_crate.gemspec
index 051ec94..8d0ab70 100644
--- a/ro_crate.gemspec
+++ b/ro_crate.gemspec
@@ -8,8 +8,8 @@ Gem::Specification.new do |s|
   s.homepage    = 'https://github.com/ResearchObject/ro-crate-ruby'
   s.require_paths = ['lib']
   s.licenses    = ['MIT']
-  s.add_runtime_dependency 'addressable', '>= 2.7', '< 2.9'
-  s.add_runtime_dependency 'rubyzip', '~> 2.0.0'
+  s.add_runtime_dependency 'addressable', '>= 2.7', '< 3'
+  s.add_runtime_dependency 'rubyzip', '>= 2.3', '< 4'
   s.add_development_dependency 'rake', '~> 13.0.0'
   s.add_development_dependency 'test-unit', '~> 3.5.3'
   s.add_development_dependency 'simplecov', '~> 0.21.2'