diff --git a/build.sc b/build.sc
index af0b7b2..dcd59d0 100644
--- a/build.sc
+++ b/build.sc
@@ -225,7 +225,7 @@ object docs extends BasePublishModule {
 
 object Deps {
   val smithy = new {
-    val smithyVersion = "1.63.0"
+    val smithyVersion = "1.65.0"
     val model = ivy"software.amazon.smithy:smithy-model:$smithyVersion"
     val awsTraits = ivy"software.amazon.smithy:smithy-aws-traits:$smithyVersion"
     val awsProtocolTestTraits =