diff --git a/codegen/smithy-aws-swift-codegen/src/main/kotlin/software/amazon/smithy/aws/swift/codegen/protocols/restjson/AWSRestJson1ProtocolGenerator.kt b/codegen/smithy-aws-swift-codegen/src/main/kotlin/software/amazon/smithy/aws/swift/codegen/protocols/restjson/AWSRestJson1ProtocolGenerator.kt
index 09759764ae8..b745bebbc28 100644
--- a/codegen/smithy-aws-swift-codegen/src/main/kotlin/software/amazon/smithy/aws/swift/codegen/protocols/restjson/AWSRestJson1ProtocolGenerator.kt
+++ b/codegen/smithy-aws-swift-codegen/src/main/kotlin/software/amazon/smithy/aws/swift/codegen/protocols/restjson/AWSRestJson1ProtocolGenerator.kt
@@ -14,7 +14,5 @@ class AWSRestJson1ProtocolGenerator : AWSHTTPBindingProtocolGenerator(RestJSONCu
     override val testsToIgnore = setOf(
         "SDKAppliedContentEncoding_restJson1",
         "SDKAppendedGzipAfterProvidedEncoding_restJson1",
-        // This test is disabled until Smithy v1.51.0 with the fix for the test gets released.
-        "RestJsonClientIgnoresDefaultValuesIfMemberValuesArePresentInResponse"
     )
 }
diff --git a/gradle.properties b/gradle.properties
index 0643bc919ec..855131ff480 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -3,7 +3,7 @@ kotlin.code.style=official
 org.gradle.jvmargs=-Xmx4096M
 
 # codegen
-smithyVersion=1.50.0
+smithyVersion=1.51.0
 smithyGradleVersion=0.6.0
 
 smithySwiftVersion = 0.1.0