diff --git a/CHANGELOG.rdoc b/CHANGELOG.rdoc
index 9bd827f..93fef10 100644
--- a/CHANGELOG.rdoc
+++ b/CHANGELOG.rdoc
@@ -1,5 +1,9 @@
 = Changelog
 
+== 1.21.2
+
+* Ensure sending via message stream uses the correct message stream
+
 == 1.21.1
 
 * Fixed Postmark::ApiClient#get_message_streams
diff --git a/VERSION b/VERSION
index 2844977..0369d0b 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.21.1
+1.21.2
diff --git a/lib/postmark/version.rb b/lib/postmark/version.rb
index 2276fe8..ae66b8e 100644
--- a/lib/postmark/version.rb
+++ b/lib/postmark/version.rb
@@ -1,3 +1,3 @@
 module Postmark
-  VERSION = '1.21.1'
+  VERSION = '1.21.2'
 end