diff --git a/fluent-plugin-azure-storage-append-blob.gemspec b/fluent-plugin-azure-storage-append-blob.gemspec
index 9cfa277..ec92d3e 100644
--- a/fluent-plugin-azure-storage-append-blob.gemspec
+++ b/fluent-plugin-azure-storage-append-blob.gemspec
@@ -3,7 +3,7 @@ $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 
 Gem::Specification.new do |spec|
   spec.name = 'fluent-plugin-azure-storage-append-blob'
-  spec.version = '0.2.0'
+  spec.version = '0.2.1'
   spec.authors = ['Microsoft Corporation']
   spec.email = ['']