diff --git a/.github/workflows/ruby.yml b/.github/workflows/ruby.yml
index 395d0d5..85e52e8 100644
--- a/.github/workflows/ruby.yml
+++ b/.github/workflows/ruby.yml
@@ -16,9 +16,9 @@ jobs:
       fail-fast: false
       matrix:
         ruby-version:
-          - "3.2"
           - "3.3"
           - "3.4"
+          - "4.0"
 
     name: Ruby ${{ matrix.ruby-version }}
 
diff --git a/.mise.toml b/.mise.toml
new file mode 100644
index 0000000..f3d14c8
--- /dev/null
+++ b/.mise.toml
@@ -0,0 +1,2 @@
+[tools]
+ruby = "4.0.5"
diff --git a/.ruby-version b/.ruby-version
index f989260..7636e75 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-3.4.4
+4.0.5
diff --git a/Gemfile.lock b/Gemfile.lock
index 25a54b2..50b2791 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -12,79 +12,93 @@ PATH
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.8.5)
-      public_suffix (>= 2.0.2, < 6.0)
+    addressable (2.9.0)
+      public_suffix (>= 2.0.2, < 8.0)
     base64 (0.3.0)
-    bigdecimal (3.1.8)
+    bigdecimal (4.1.2)
     coderay (1.1.3)
-    concurrent-ruby (1.0.3)
-    crack (0.4.5)
+    concurrent-ruby (1.3.6)
+    crack (1.0.1)
+      bigdecimal
       rexml
-    diff-lcs (1.5.0)
-    dotenv (2.8.1)
-    dry-configurable (1.0.0)
-      dry-core (~> 1.0, < 2)
+    diff-lcs (1.6.2)
+    dotenv (3.2.0)
+    dry-configurable (1.4.0)
+      dry-core (~> 1.0)
       zeitwerk (~> 2.6)
-    dry-core (1.0.0)
+    dry-core (1.2.0)
       concurrent-ruby (~> 1.0)
+      logger
       zeitwerk (~> 2.6)
-    dry-inflector (1.0.0)
-    dry-logic (1.5.0)
+    dry-inflector (1.3.1)
+    dry-logic (1.6.0)
+      bigdecimal
       concurrent-ruby (~> 1.0)
-      dry-core (~> 1.0, < 2)
+      dry-core (~> 1.1)
       zeitwerk (~> 2.6)
-    dry-struct (1.6.0)
-      dry-core (~> 1.0, < 2)
-      dry-types (>= 1.7, < 2)
+    dry-struct (1.8.1)
+      dry-core (~> 1.1)
+      dry-types (~> 1.8, >= 1.8.2)
       ice_nine (~> 0.11)
       zeitwerk (~> 2.6)
-    dry-types (1.7.1)
+    dry-types (1.9.1)
+      bigdecimal (>= 3.0)
       concurrent-ruby (~> 1.0)
       dry-core (~> 1.0)
       dry-inflector (~> 1.0)
       dry-logic (~> 1.4)
       zeitwerk (~> 2.6)
-    faraday (2.7.10)
-      faraday-net_http (>= 2.0, < 3.1)
-      ruby2_keywords (>= 0.0.4)
-    faraday-net_http (3.0.2)
-    hashdiff (1.0.1)
+    faraday (2.14.2)
+      faraday-net_http (>= 2.0, < 3.5)
+      json
+      logger
+    faraday-net_http (3.4.3)
+      net-http (~> 0.5)
+    hashdiff (1.2.1)
     ice_nine (0.11.2)
-    method_source (1.0.0)
-    pry (0.14.2)
+    io-console (0.8.2)
+    json (2.19.5)
+    logger (1.7.0)
+    method_source (1.1.0)
+    net-http (0.9.1)
+      uri (>= 0.11.1)
+    pry (0.16.0)
       coderay (~> 1.1)
       method_source (~> 1.0)
-    public_suffix (5.0.3)
-    rake (13.0.1)
-    rexml (3.2.6)
-    rspec (3.12.0)
-      rspec-core (~> 3.12.0)
-      rspec-expectations (~> 3.12.0)
-      rspec-mocks (~> 3.12.0)
-    rspec-core (3.12.2)
-      rspec-support (~> 3.12.0)
-    rspec-expectations (3.12.3)
+      reline (>= 0.6.0)
+    public_suffix (7.0.5)
+    rake (13.4.2)
+    reline (0.6.3)
+      io-console (~> 0.5)
+    rexml (3.4.4)
+    rspec (3.13.2)
+      rspec-core (~> 3.13.0)
+      rspec-expectations (~> 3.13.0)
+      rspec-mocks (~> 3.13.0)
+    rspec-core (3.13.6)
+      rspec-support (~> 3.13.0)
+    rspec-expectations (3.13.5)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.12.0)
-    rspec-mocks (3.12.6)
+      rspec-support (~> 3.13.0)
+    rspec-mocks (3.13.8)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.12.0)
-    rspec-support (3.12.1)
-    ruby2_keywords (0.0.5)
-    vcr (6.2.0)
-    webmock (3.19.1)
+      rspec-support (~> 3.13.0)
+    rspec-support (3.13.7)
+    uri (1.1.1)
+    vcr (6.4.0)
+    webmock (3.26.2)
       addressable (>= 2.8.0)
       crack (>= 0.3.2)
       hashdiff (>= 0.4.0, < 2.0.0)
-    zeitwerk (2.6.11)
+    zeitwerk (2.8.2)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
   base64
-  bundler (~> 2.0)
-  dotenv (~> 2.0)
+  bundler (>= 2.0)
+  dotenv (>= 2.0)
   kickplan-sdk!
   pry (~> 0.14)
   rake (~> 13.0)
@@ -93,4 +107,4 @@ DEPENDENCIES
   webmock (~> 3.5)
 
 BUNDLED WITH
-   2.4.19
+  4.0.12
diff --git a/kickplan.gemspec b/kickplan.gemspec
index 8c993d1..bef7594 100644
--- a/kickplan.gemspec
+++ b/kickplan.gemspec
@@ -18,7 +18,7 @@ Gem::Specification.new do |spec|
   spec.executables   = spec.files.grep(%r{^bin/}) { |f| File.basename(f) }
   spec.require_paths = ["lib"]
 
-  spec.required_ruby_version = ">= 2.7.0"
+  spec.required_ruby_version = ">= 3.3"
 
   spec.add_runtime_dependency "concurrent-ruby", ">= 1.0"
   spec.add_runtime_dependency "dry-configurable", ">= 1.0"
@@ -28,8 +28,8 @@ Gem::Specification.new do |spec|
   spec.add_runtime_dependency "bigdecimal" # Required for Ruby 3.4+
 
   spec.add_development_dependency "base64" # Required for Ruby 3.4+
-  spec.add_development_dependency "bundler", "~> 2.0"
-  spec.add_development_dependency "dotenv", "~> 2.0"
+  spec.add_development_dependency "bundler", ">= 2.0"
+  spec.add_development_dependency "dotenv", ">= 2.0"
   spec.add_development_dependency "pry", "~> 0.14"
   spec.add_development_dependency "rake", "~> 13.0"
   spec.add_development_dependency "rspec", "~> 3.0"