diff --git a/shard.yml b/shard.yml
index 3fba95c..d1c72d2 100644
--- a/shard.yml
+++ b/shard.yml
@@ -1,5 +1,5 @@
 name: carbon_sendgrid_adapter
-version: 0.5.0
+version: 0.5.1
 
 authors:
   - Matthew McGarvey <matthewmcgarvey14@gmail.com>
diff --git a/src/carbon_sendgrid_adapter.cr b/src/carbon_sendgrid_adapter.cr
index 9b36fd5..45c2dc5 100644
--- a/src/carbon_sendgrid_adapter.cr
+++ b/src/carbon_sendgrid_adapter.cr
@@ -6,7 +6,7 @@ require "./errors"
 require "./carbon_sendgrid_extensions"
 
 class Carbon::SendGridAdapter < Carbon::Adapter
-  VERSION = "0.5.0"
+  VERSION = "0.5.1"
   private getter api_key : String
   private getter? sandbox : Bool