diff --git a/bindings/ruby/Makefile b/bindings/ruby/Makefile
index af925e3e..bd21b57c 100644
--- a/bindings/ruby/Makefile
+++ b/bindings/ruby/Makefile
@@ -5,7 +5,7 @@
 # Use bundle install && rake to install gem and test
 install: gen_const
 	cd unicorn_gem && rake build
-	cd unicorn_gem && gem install --local pkg/unicorn-engine-2.1.1.gem
+	cd unicorn_gem && gem install --local pkg/unicorn-engine-2.1.3.gem
 
 gen_const:
 	cd .. && python3 const_generator.py ruby
diff --git a/bindings/ruby/unicorn_gem/lib/unicorn_engine/version.rb b/bindings/ruby/unicorn_gem/lib/unicorn_engine/version.rb
index b5091e77..df28ba57 100644
--- a/bindings/ruby/unicorn_gem/lib/unicorn_engine/version.rb
+++ b/bindings/ruby/unicorn_gem/lib/unicorn_engine/version.rb
@@ -1,3 +1,3 @@
 module Unicorn
-  VERSION = "2.1.1"
+  VERSION = "2.1.3"
 end