diff --git a/Gemfile b/Gemfile
index 31f394a..32d3f95 100644
--- a/Gemfile
+++ b/Gemfile
@@ -7,6 +7,7 @@ gemspec
 
 gem 'minitest', '~> 5.0'
 gem 'mocha', '~> 2.0'
+gem 'ostruct', '~> 0.6.0'
 gem 'rack', '~> 3.2'
 gem 'rackup', '~> 2.0'
 gem 'rake', '~> 13.3'
diff --git a/Gemfile.lock b/Gemfile.lock
index f3f45b7..c992783 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -2,34 +2,30 @@ PATH
   remote: .
   specs:
     lean-microsoft-graph (0.4.0)
+      base64 (~> 0.2.0)
       faraday (~> 2.0)
       faraday-retry (~> 2.0)
+      logger (~> 1.6)
 
 GEM
   remote: https://rubygems.org/
   specs:
-    faraday (2.12.2)
-      faraday-net_http (>= 2.0, < 3.5)
-      json
-      logger
-    faraday-net_http (3.4.0)
-      net-http (>= 0.5.0)
-    faraday-retry (2.2.1)
+    base64 (0.2.0)
+    faraday (2.0.0)
+      ruby2_keywords (>= 0.0.4)
+    faraday-retry (2.3.2)
       faraday (~> 2.0)
-    json (2.9.1)
-    logger (1.6.4)
+    logger (1.7.0)
     minitest (5.25.4)
     mocha (2.7.1)
       ruby2_keywords (>= 0.0.5)
-    net-http (0.6.0)
-      uri
+    ostruct (0.6.3)
     rack (3.2.4)
     rackup (2.2.1)
       rack (>= 3)
     rake (13.3.1)
     redcarpet (3.6.0)
     ruby2_keywords (0.0.5)
-    uri (1.0.3)
     webrick (1.9.2)
     yard (0.9.37)
 
@@ -42,6 +38,7 @@ DEPENDENCIES
   lean-microsoft-graph!
   minitest (~> 5.0)
   mocha (~> 2.0)
+  ostruct (~> 0.6.0)
   rack (~> 3.2)
   rackup (~> 2.0)
   rake (~> 13.3)
diff --git a/lean-microsoft-graph.gemspec b/lean-microsoft-graph.gemspec
index 495f0af..e4379c2 100644
--- a/lean-microsoft-graph.gemspec
+++ b/lean-microsoft-graph.gemspec
@@ -29,8 +29,10 @@ Gem::Specification.new do |spec|
   spec.executables = spec.files.grep(%r{\Aexe/}) { |f| File.basename(f) }
   spec.require_paths = ['lib']
 
+  spec.add_dependency 'base64', '~> 0.2.0'
   spec.add_dependency 'faraday', '~> 2.0'
   spec.add_dependency 'faraday-retry', '~> 2.0'
+  spec.add_dependency 'logger', '~> 1.6'
 
   # For more information and examples about making a new gem, checkout our
   # guide at: https://bundler.io/guides/creating_gem.html