diff --git a/VERSION b/VERSION
index 3336003..bc80560 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.3.7
+1.5.0
diff --git a/safemode.gemspec b/safemode.gemspec
index 2050f15..31a7116 100644
--- a/safemode.gemspec
+++ b/safemode.gemspec
@@ -4,7 +4,7 @@ require 'date'
 
 Gem::Specification.new do |s|
   s.name = "safemode".freeze
-  s.version = "1.4.0"
+  s.version = "1.5.0"
   s.date = Date.today
 
   s.summary = "A library for safe evaluation of Ruby code based on ParseTree/RubyParser and Ruby2Ruby"