diff --git a/codegen/smithy-aws-swift-codegen/src/main/kotlin/software/amazon/smithy/aws/swift/codegen/protocols/awsjson/AWSJSON1_0ProtocolGenerator.kt b/codegen/smithy-aws-swift-codegen/src/main/kotlin/software/amazon/smithy/aws/swift/codegen/protocols/awsjson/AWSJSON1_0ProtocolGenerator.kt
index bc8fd6cee38..04785744bc3 100644
--- a/codegen/smithy-aws-swift-codegen/src/main/kotlin/software/amazon/smithy/aws/swift/codegen/protocols/awsjson/AWSJSON1_0ProtocolGenerator.kt
+++ b/codegen/smithy-aws-swift-codegen/src/main/kotlin/software/amazon/smithy/aws/swift/codegen/protocols/awsjson/AWSJSON1_0ProtocolGenerator.kt
@@ -28,8 +28,6 @@ class AWSJSON1_0ProtocolGenerator : AWSHTTPBindingProtocolGenerator(AWSJSONCusto
         setOf(
             "SDKAppliedContentEncoding_awsJson1_0",
             "SDKAppendsGzipAndIgnoresHttpProvidedEncoding_awsJson1_0",
-            "AwsJson10ClientPopulatesDefaultValuesInInput", // TODO: broken in Smithy 1.53.0
-            "AwsJson10ClientPopulatesDefaultsValuesWhenMissingInResponse", // TODO: broken in Smithy 1.53.0
         )
 
     override fun getProtocolHttpBindingResolver(
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 18235550b62..214563cf7f9 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
@@ -19,8 +19,6 @@ class AWSRestJson1ProtocolGenerator : AWSHTTPBindingProtocolGenerator(RestJSONCu
         setOf(
             "SDKAppliedContentEncoding_restJson1",
             "SDKAppendedGzipAfterProvidedEncoding_restJson1",
-            "RestJsonClientPopulatesDefaultValuesInInput", // TODO: broken in Smithy 1.53.0
-            "RestJsonClientPopulatesDefaultsValuesWhenMissingInResponse", // TODO: broken in Smithy 1.53.0
         )
 
     override fun httpBodyMembers(
diff --git a/gradle.properties b/gradle.properties
index e8cf8f0e2b1..657a2760a7f 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -3,7 +3,7 @@ kotlin.code.style=official
 org.gradle.jvmargs=-Xmx4096M
 
 # codegen
-smithyVersion=1.53.0
+smithyVersion=1.54.0
 smithyGradleVersion=0.6.0
 
 smithySwiftVersion = 0.1.0