diff --git a/Gemfile.lock b/Gemfile.lock
index c5d3679..2ca8a7a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -14,7 +14,7 @@ GEM
       json (~> 1.4.6)
       term-ansicolor (~> 1.0.5)
     diff-lcs (1.1.2)
-    flexmock (0.8.11)
+    flexmock (1.3.3)
     gherkin (2.3.3)
       json (~> 1.4.6)
     json (1.4.6)
@@ -35,7 +35,7 @@ PLATFORMS
 
 DEPENDENCIES
   cucumber (~> 0.8)
-  flexmock (~> 0.8.11)
+  flexmock (~> 1.3.3)
   rake
   right_http_connection!
   rspec (~> 2.3)
diff --git a/right_http_connection.gemspec b/right_http_connection.gemspec
index 95f9e67..fae4263 100644
--- a/right_http_connection.gemspec
+++ b/right_http_connection.gemspec
@@ -43,7 +43,7 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency('rake')
   spec.add_development_dependency('rspec', "~> 2.3")
   spec.add_development_dependency('cucumber', "~> 0.8")
-  spec.add_development_dependency('flexmock', "~> 0.8.11")
+  spec.add_development_dependency('flexmock', "~> 1.3.3")
   spec.add_development_dependency('trollop', "~> 1.16")
 
   spec.description = <<-EOF