diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index fb52459..3001875 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -21,7 +21,7 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Set up Ruby ${{ matrix.ruby }}
-        uses: ruby/setup-ruby@ec02537da5712d66d4d50a0f33b7eb52773b5ed1
+        uses: ruby/setup-ruby@v1
         with:
           ruby-version: ${{ matrix.ruby }}
 
@@ -30,9 +30,9 @@ jobs:
 
       - name: Build
         run: bundle exec rake build
-    
+
       - name: Load test data
         run: bundle exec rake test_refreshed_data
-    
+
       - name: Run tests
         run: bundle exec rspec
diff --git a/.gitignore b/.gitignore
index c10a1b5..dcf306f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,3 @@
 *.gem
-.ruby-version
 spec/test-data
+.idea/
diff --git a/.ruby-version b/.ruby-version
new file mode 100644
index 0000000..818bd47
--- /dev/null
+++ b/.ruby-version
@@ -0,0 +1 @@
+3.0.6
diff --git a/Gemfile b/Gemfile
index 6773ef2..f7200f1 100644
--- a/Gemfile
+++ b/Gemfile
@@ -3,5 +3,3 @@
 source 'http://rubygems.org'
 
 gemspec
-
-gem 'semver2', '~> 3.4', '>= 3.4.2'
diff --git a/Gemfile.lock b/Gemfile.lock
index 19a5888..24e986b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,10 +1,11 @@
 PATH
   remote: .
   specs:
-    eppo-server-sdk (0.2.4)
+    eppo-server-sdk (0.2.5)
       concurrent-ruby (~> 1.1, >= 1.1.9)
       faraday (~> 2.7, >= 2.7.1)
       faraday-retry (~> 2.0, >= 2.0.0)
+      semver2 (~> 3.4, >= 3.4.2)
 
 GEM
   remote: http://rubygems.org/
@@ -12,15 +13,15 @@ GEM
     addressable (2.8.1)
       public_suffix (>= 2.0.2, < 6.0)
     ast (2.4.2)
-    concurrent-ruby (1.2.3)
+    concurrent-ruby (1.3.3)
     crack (0.4.5)
       rexml
     diff-lcs (1.5.0)
-    faraday (2.9.0)
+    faraday (2.9.2)
       faraday-net_http (>= 2.0, < 3.2)
     faraday-net_http (3.1.0)
       net-http
-    faraday-retry (2.2.0)
+    faraday-retry (2.2.1)
       faraday (~> 2.0)
     hashdiff (1.0.1)
     jaro_winkler (1.5.6)
@@ -66,13 +67,13 @@ GEM
 PLATFORMS
   aarch64-linux
   arm64-darwin-21
+  arm64-darwin-23
 
 DEPENDENCIES
   eppo-server-sdk!
   rake (~> 13.0, >= 13.0.6)
   rspec (~> 3.12, >= 3.12.0)
   rubocop (~> 0.82.0)
-  semver2 (~> 3.4, >= 3.4.2)
   webmock (~> 3.18, >= 3.18.1)
 
 BUNDLED WITH
diff --git a/eppo-server-sdk.gemspec b/eppo-server-sdk.gemspec
index 886ee20..a99a153 100644
--- a/eppo-server-sdk.gemspec
+++ b/eppo-server-sdk.gemspec
@@ -14,6 +14,7 @@ Gem::Specification.new do |s|
   s.add_dependency 'concurrent-ruby', '~> 1.1', '>= 1.1.9'
   s.add_dependency 'faraday', '~> 2.7', '>= 2.7.1'
   s.add_dependency 'faraday-retry', '~> 2.0', '>= 2.0.0'
+  s.add_dependency 'semver2', '~> 3.4', '>= 3.4.2'
   s.add_development_dependency 'rake', '~> 13.0', '>= 13.0.6'
   s.add_development_dependency 'rspec', '~> 3.12', '>= 3.12.0'
   s.add_development_dependency 'rubocop', '~> 0.82.0'