diff --git a/build.gradle.kts b/build.gradle.kts
index 31c305404d5..abb37258fb7 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -28,7 +28,7 @@ allprojects {
     version = "0.11.0"
 }
 
-extra["smithyVersion"] = "[1.17.0,1.18.0["
+extra["smithyVersion"] = "[1.19.0,1.20.0["
 
 // The root project doesn't produce a JAR.
 tasks["jar"].enabled = false