diff --git a/Rakefile b/Rakefile
index 01936654..bd19e3a1 100644
--- a/Rakefile
+++ b/Rakefile
@@ -22,7 +22,7 @@ def apply_spec_defaults(s)
   s.test_files = `git ls-files -- test/*`.split("\n")
   s.add_dependency("ruby_parser",">= 2.3.1")
   s.add_dependency("coderay","~>0.9.8")
-  s.add_dependency("slop","~>2.1.0")
+  s.add_dependency("slop","~>2.2.0")
   s.add_dependency("method_source","~>0.6.7")
   s.add_development_dependency("bacon","~>1.1.0")
   s.add_development_dependency("open4", "~>1.0.1")
diff --git a/pry.gemspec b/pry.gemspec
index a30ee47f..a4187d74 100644
--- a/pry.gemspec
+++ b/pry.gemspec
@@ -23,7 +23,7 @@ Gem::Specification.new do |s|
     if Gem::Version.new(Gem::VERSION) >= Gem::Version.new('1.2.0') then
       s.add_runtime_dependency(%q<ruby_parser>, [">= 2.3.1"])
       s.add_runtime_dependency(%q<coderay>, ["~> 0.9.8"])
-      s.add_runtime_dependency(%q<slop>, ["~> 2.1.0"])
+      s.add_runtime_dependency(%q<slop>, ["~> 2.2.0"])
       s.add_runtime_dependency(%q<method_source>, ["~> 0.6.7"])
       s.add_development_dependency(%q<bacon>, ["~> 1.1.0"])
       s.add_development_dependency(%q<open4>, ["~> 1.0.1"])
@@ -31,7 +31,7 @@ Gem::Specification.new do |s|
     else
       s.add_dependency(%q<ruby_parser>, [">= 2.3.1"])
       s.add_dependency(%q<coderay>, ["~> 0.9.8"])
-      s.add_dependency(%q<slop>, ["~> 2.1.0"])
+      s.add_dependency(%q<slop>, ["~> 2.2.0"])
       s.add_dependency(%q<method_source>, ["~> 0.6.7"])
       s.add_dependency(%q<bacon>, ["~> 1.1.0"])
       s.add_dependency(%q<open4>, ["~> 1.0.1"])
@@ -40,7 +40,7 @@ Gem::Specification.new do |s|
   else
     s.add_dependency(%q<ruby_parser>, [">= 2.3.1"])
     s.add_dependency(%q<coderay>, ["~> 0.9.8"])
-    s.add_dependency(%q<slop>, ["~> 2.1.0"])
+    s.add_dependency(%q<slop>, ["~> 2.2.0"])
     s.add_dependency(%q<method_source>, ["~> 0.6.7"])
     s.add_dependency(%q<bacon>, ["~> 1.1.0"])
     s.add_dependency(%q<open4>, ["~> 1.0.1"])