diff --git a/Gemfile.lock b/Gemfile.lock
index 6244860..e2329fa 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -3,7 +3,7 @@ PATH
   specs:
     manga_plus-api (0.1.0)
       google-protobuf (~> 3.21.3)
-      httparty (~> 0.18.0)
+      httparty (>= 0.18, < 0.22)
 
 GEM
   remote: https://rubygems.org/
@@ -12,12 +12,10 @@ GEM
     byebug (11.1.3)
     diff-lcs (1.3)
     google-protobuf (3.21.3)
-    httparty (0.18.1)
-      mime-types (~> 3.0)
+    httparty (0.21.0)
+      mini_mime (>= 1.0.0)
       multi_xml (>= 0.5.2)
-    mime-types (3.4.1)
-      mime-types-data (~> 3.2015)
-    mime-types-data (3.2022.0105)
+    mini_mime (1.1.2)
     multi_xml (0.6.0)
     parallel (1.19.1)
     parser (2.7.1.2)
diff --git a/manga_plus-api.gemspec b/manga_plus-api.gemspec
index 9216483..9e0135c 100644
--- a/manga_plus-api.gemspec
+++ b/manga_plus-api.gemspec
@@ -38,7 +38,7 @@ Gem::Specification.new do |spec|
   spec.require_paths = ['lib']
 
   spec.add_dependency 'google-protobuf', '~> 3.21.3'
-  spec.add_dependency 'httparty', '~> 0.18.0'
+  spec.add_dependency 'httparty', '>= 0.18', '< 0.22'
 
   spec.add_development_dependency 'bundler', '~> 2.3.7'
   spec.add_development_dependency 'byebug', '~> 11.1.3'