diff --git a/Gemfile.lock b/Gemfile.lock
index 9329035..8005bad 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    sm2-crypto (0.2)
+    sm2-crypto (0.2.1)
 
 GEM
   remote: https://rubygems.org/
diff --git a/sm2-crypto.gemspec b/sm2-crypto.gemspec
index 09bb137..2772036 100644
--- a/sm2-crypto.gemspec
+++ b/sm2-crypto.gemspec
@@ -2,7 +2,7 @@
 
 Gem::Specification.new do |spec|
   spec.name = "sm2-crypto"
-  spec.version = "0.2"
+  spec.version = "0.2.1"
   spec.authors = ["Seekr"]
   spec.email = ["wzhao23@gmail.com"]