diff --git a/project/Dependencies.scala b/project/Dependencies.scala
index d6ec5ff7..6d685c4d 100644
--- a/project/Dependencies.scala
+++ b/project/Dependencies.scala
@@ -7,7 +7,7 @@ object Dependencies {
   val typesafePlay = "com.typesafe.play" %% "play" % playVersion
 
   val scalaVersion       = "2.13.12"
-  val smithy4sVersion    = "0.18.7"
+  val smithy4sVersion    = "0.18.8"
   val smithyCore         = "com.disneystreaming.smithy4s" %% "smithy4s-core"             % smithy4sVersion
   val smithyJson         = "com.disneystreaming.smithy4s" %% "smithy4s-json"             % smithy4sVersion
   val smithyXml          = "com.disneystreaming.smithy4s" %% "smithy4s-xml"              % smithy4sVersion
diff --git a/project/plugins.sbt b/project/plugins.sbt
index 59b261ec..8d4bdd00 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -1,7 +1,7 @@
 addSbtPlugin("com.codecommit"               %% "sbt-github-packages"  % "0.5.3")
 addSbtPlugin("org.wartremover"              %% "sbt-wartremover"      % "3.1.5")
 addSbtPlugin("org.scalameta"                %% "sbt-scalafmt"         % "2.5.2")
-addSbtPlugin("com.disneystreaming.smithy4s" %% "smithy4s-sbt-codegen" % "0.18.7")
+addSbtPlugin("com.disneystreaming.smithy4s" %% "smithy4s-sbt-codegen" % "0.18.8")
 addSbtPlugin("com.typesafe.play"            %% "sbt-plugin"           % "2.9.1")
 addSbtPlugin("org.scoverage"                %% "sbt-scoverage"        % "2.0.9")