diff --git a/modules/api-definition/project/plugins.sbt b/modules/api-definition/project/plugins.sbt
index 80da07c4..be12ac06 100644
--- a/modules/api-definition/project/plugins.sbt
+++ b/modules/api-definition/project/plugins.sbt
@@ -1,2 +1,2 @@
 addSbtPlugin("com.codecommit" % "sbt-github-packages" % "0.5.3")
-addSbtPlugin("com.disneystreaming.smithy4s" % "smithy4s-sbt-codegen" % "0.17.19")
+addSbtPlugin("com.disneystreaming.smithy4s" % "smithy4s-sbt-codegen" % "0.18.24")
diff --git a/project/plugins.sbt b/project/plugins.sbt
index 58309dfa..92a0358e 100755
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -23,4 +23,4 @@ addSbtPlugin("com.github.sbt" % "sbt-license-report" % "1.6.1")
 
 addSbtPlugin("com.codecommit" % "sbt-github-packages" % "0.5.3")
 
-addSbtPlugin("com.disneystreaming.smithy4s" % "smithy4s-sbt-codegen" % "0.17.19")
+addSbtPlugin("com.disneystreaming.smithy4s" % "smithy4s-sbt-codegen" % "0.18.24")