diff --git a/Gemfile b/Gemfile
index 863271f..bb94df8 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,8 +1,4 @@
 # frozen_string_literal: true
 
 source "https://rubygems.org"
-
-gem "optimist"
-gem "parslet"
-gem "rmagick", ">= 5.3.0"
-gem "rsvg2"
+gemspec
diff --git a/lib/rsyntaxtree/version.rb b/lib/rsyntaxtree/version.rb
index 8aa7bee..92e5644 100755
--- a/lib/rsyntaxtree/version.rb
+++ b/lib/rsyntaxtree/version.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module RSyntaxTree
-  VERSION = "1.2.10"
+  VERSION = "1.2.11"
 end
diff --git a/rsyntaxtree.gemspec b/rsyntaxtree.gemspec
index 19656c6..6be63cd 100644
--- a/rsyntaxtree.gemspec
+++ b/rsyntaxtree.gemspec
@@ -17,9 +17,9 @@ Gem::Specification.new do |s|
   s.require_paths = ["lib"]
 
   # specify any dependencies here; for example:
-  s.add_runtime_dependency "optimist", "~> 3.0", ">= 3.0.1"
+  s.add_runtime_dependency "optimist", ">= 3.0.1"
   s.add_runtime_dependency "parslet"
-  s.add_runtime_dependency "rmagick", "~> 4.2", ">= 4.2.3"
+  s.add_runtime_dependency "rmagick", ">= 4.3"
   s.add_runtime_dependency "rsvg2"
 
   s.add_development_dependency "yaml"