diff --git a/lib/base64.gemspec b/lib/base64.gemspec
index 1863a3fd3d..daa0b7fa14 100644
--- a/lib/base64.gemspec
+++ b/lib/base64.gemspec
@@ -1,6 +1,6 @@
 Gem::Specification.new do |spec|
   spec.name          = "base64"
-  spec.version       = "0.1.0"
+  spec.version       = "0.1.1"
   spec.authors       = ["Yusuke Endoh"]
   spec.email         = ["mame@ruby-lang.org"]