diff --git a/.github/workflows/continuous-integration.yml b/.github/workflows/continuous-integration.yml
index f5fa205ced1..efcac5a65c1 100644
--- a/.github/workflows/continuous-integration.yml
+++ b/.github/workflows/continuous-integration.yml
@@ -17,29 +17,28 @@ jobs:
       matrix:
         # This matrix runs tests on iOS sim & Mac, on oldest & newest supported Xcodes
         runner:
-          - macos-11
+          - macos-12
           - macos-13
         xcode:
-          # Xcode 13.2.1 is used as oldest because 13.2 is the first version which backports concurrency
-          - Xcode_13.2.1
-          - Xcode_14.3.1
+          - Xcode_14.0.1
+          - Xcode_15.0
         destination:
-          - 'platform=iOS Simulator,OS=15.2,name=iPhone 13'
-          - 'platform=iOS Simulator,OS=16.4,name=iPhone 14'
+          - 'platform=iOS Simulator,OS=16.0,name=iPhone 13'
+          - 'platform=iOS Simulator,OS=17.0,name=iPhone 14'
           - 'platform=OS X'
         exclude:
           # Don't run old macOS with new Xcode
-          - runner: macos-11
-            xcode: Xcode_14.3.1
+          - runner: macos-12
+            xcode: Xcode_15.0
           # Don't run new macOS with old Xcode
           - runner: macos-13
-            xcode: Xcode_13.2.1
+            xcode: Xcode_14.0.1
           # Don't run old iOS simulator with new Xcode
-          - destination: 'platform=iOS Simulator,OS=15.2,name=iPhone 13'
-            xcode: Xcode_14.3.1
+          - destination: 'platform=iOS Simulator,OS=16.0,name=iPhone 13'
+            xcode: Xcode_15.0
           # Don't run new iOS simulator with old Xcode
-          - destination: 'platform=iOS Simulator,OS=16.4,name=iPhone 14'
-            xcode: Xcode_13.2.1
+          - destination: 'platform=iOS Simulator,OS=17.0,name=iPhone 14'
+            xcode: Xcode_14.0.1
     steps:
       - name: Checkout aws-sdk-swift
         uses: actions/checkout@v3
@@ -105,8 +104,8 @@ jobs:
           - focal
           - amazonlinux2
         version:
-          - 5.5.3
-          - 5.8.1
+          - 5.7
+          - 5.9
     steps:
       - name: Checkout aws-sdk-swift
         uses: actions/checkout@v3
@@ -139,10 +138,10 @@ jobs:
           path: |
             ~/Library/Caches/org.swift.swiftpm
             ~/.cache/org.swift.swiftpm
-          key: 1-${{ runner.os }}-swift5.8.1-spm-${{ hashFiles('Package.swift', 'AWSSDKSwiftCLI/Package.swift') }}
+          key: 1-${{ runner.os }}-swift-${{ matrix.version }}-spm-${{ hashFiles('Package.swift', 'AWSSDKSwiftCLI/Package.swift') }}
           restore-keys: |
-            1-${{ runner.os }}-swift5.8.1-spm-${{ hashFiles('Package.swift', 'AWSSDKSwiftCLI/Package.swift') }}
-            1-${{ runner.os }}-swift5.8.1-spm-
+            1-${{ runner.os }}-swift-${{ matrix.version }}-spm-${{ hashFiles('Package.swift', 'AWSSDKSwiftCLI/Package.swift') }}
+            1-${{ runner.os }}-swift-${{ matrix.version }}-spm-
       - name: Setup Java
         uses: actions/setup-java@v3
         with:
diff --git a/.github/workflows/model-integration.yml b/.github/workflows/model-integration.yml
index 7ee77af2578..8265b28bc94 100644
--- a/.github/workflows/model-integration.yml
+++ b/.github/workflows/model-integration.yml
@@ -19,7 +19,7 @@ on:
 jobs:
   model-integration:
     runs-on: ubuntu-latest
-    container: swift:5.8-jammy
+    container: swift:5.9-jammy
     env:
       AWS_SWIFT_SDK_USE_LOCAL_DEPS: 1
     steps:
diff --git a/.spi.yml b/.spi.yml
index 30024642165..cfd18808248 100644
--- a/.spi.yml
+++ b/.spi.yml
@@ -6,15 +6,15 @@ builder:
   - platform: ios
     target: AWSSTS
   - platform: linux
-    swift_version: '5.5'
-    image: registry.gitlab.com/finestructure/spi-images:basic-5.5-latest
+    swift_version: '5.7'
+    image: registry.gitlab.com/finestructure/spi-images:basic-5.7-latest
     target: AWSSTS
   - platform: linux
-    swift_version: '5.6'
-    image: registry.gitlab.com/finestructure/spi-images:basic-5.6-latest
+    swift_version: '5.8'
+    image: registry.gitlab.com/finestructure/spi-images:basic-5.8-latest
     target: AWSSTS
   - platform: linux
-    swift_version: '5.7'
-    image: registry.gitlab.com/finestructure/spi-images:basic-5.7-latest
+    swift_version: '5.9'
+    image: registry.gitlab.com/finestructure/spi-images:basic-5.9-latest
     target: AWSSTS
 
diff --git a/AWSSDKSwiftCLI/Package.swift b/AWSSDKSwiftCLI/Package.swift
index 105501e7bee..b35fe442acf 100644
--- a/AWSSDKSwiftCLI/Package.swift
+++ b/AWSSDKSwiftCLI/Package.swift
@@ -27,7 +27,7 @@ let package = Package(
                 .process("Resources/Package.Base.swift")
             ],
             swiftSettings: [
-                .unsafeFlags(["-package-description-version", "5.5"])
+                .unsafeFlags(["-package-description-version", "5.7"])
             ]
         ),
         .testTarget(
diff --git a/Docker/5.9.0/amazonlinux/2/Dockerfile b/Docker/5.9.0/amazonlinux/2/Dockerfile
new file mode 100644
index 00000000000..6b2c669ceb9
--- /dev/null
+++ b/Docker/5.9.0/amazonlinux/2/Dockerfile
@@ -0,0 +1,95 @@
+FROM swift:5.9-amazonlinux2
+
+# Install Open SSL -- dependency of CRT
+RUN yum -y install openssl-devel
+
+## The rest of this file is from https://github.com/aws/aws-codebuild-docker-images/blob/master/al2/x86_64/standard/4.0/Dockerfile
+
+# Install other utilities
+RUN yum install -y -q \
+  wget unzip
+
+## Install Java
+
+#****************      JAVA     ****************************************************
+
+ENV JAVA_17_HOME="/usr/lib/jvm/java-17-amazon-corretto.x86_64" \
+    JDK_17_HOME="/usr/lib/jvm/java-17-amazon-corretto.x86_64" \
+    JRE_17_HOME="/usr/lib/jvm/java-17-amazon-corretto.x86_64" \
+    ANT_VERSION=1.10.12 \
+    MAVEN_HOME="/opt/maven" \
+    MAVEN_VERSION=3.8.7 \
+    INSTALLED_GRADLE_VERSIONS="7.6" \
+    GRADLE_VERSION=7.6 \
+    SBT_VERSION=1.8.2 \
+    GRADLE_PATH="$SRC_DIR/gradle" \
+    ANT_DOWNLOAD_SHA512="2287dc5cfc21043c14e5413f9afb1c87c9f266ec2a9ba2d3bf2285446f6e4ccb59b558bf2e5c57911a05dfa293c7d5c7ad60ac9f744ba11406f4e6f9a27b2403" \
+    MAVEN_DOWNLOAD_SHA512="21c2be0a180a326353e8f6d12289f74bc7cd53080305f05358936f3a1b6dd4d91203f4cc799e81761cf5c53c5bbe9dcc13bdb27ec8f57ecf21b2f9ceec3c8d27" \
+    GRADLE_DOWNLOADS_SHA256="312eb12875e1747e05c2f81a4789902d7e4ec5defbd1eefeaccc08acf096505d 7.6" \
+    SBT_DOWNLOAD_SHA256="1f65344da074dbd66dfefa93c0eff8d319d772e5cad47fcbeb6ae178bbdf4686" \
+    LOG4J_UNSAFE_VERSIONS="2.11.1 1.2.8"
+
+ARG MAVEN_CONFIG_HOME="/root/.m2"
+ENV JAVA_HOME="$JAVA_17_HOME" \
+    JDK_HOME="$JDK_17_HOME" \
+    JRE_HOME="$JRE_17_HOME"
+
+RUN set -x \
+    # Install Amazon Corretto 17
+    && rpm --import https://yum.corretto.aws/corretto.key \
+    && curl -L -o /etc/yum.repos.d/corretto.repo https://yum.corretto.aws/corretto.repo \
+    && yum install -y -q java-17-amazon-corretto java-17-amazon-corretto-devel \
+    && update-ca-trust \
+    && for tool_path in $JAVA_HOME/bin/*; do \
+          tool=`basename $tool_path`; \
+          update-alternatives --install /usr/bin/$tool $tool $tool_path 10000; \
+          update-alternatives --set $tool $tool_path; \
+        done \
+    && rm $JAVA_HOME/lib/security/cacerts && ln -s /etc/pki/java/cacerts $JAVA_HOME/lib/security/cacerts \
+    # Install Ant
+    && curl -LSso /var/tmp/apache-ant-$ANT_VERSION-bin.tar.gz https://archive.apache.org/dist/ant/binaries/apache-ant-$ANT_VERSION-bin.tar.gz  \
+    && echo "$ANT_DOWNLOAD_SHA512 /var/tmp/apache-ant-$ANT_VERSION-bin.tar.gz" | sha512sum -c - \
+    && tar -xzf /var/tmp/apache-ant-$ANT_VERSION-bin.tar.gz -C /opt \
+    && rm /var/tmp/apache-ant-$ANT_VERSION-bin.tar.gz \
+    && update-alternatives --install /usr/bin/ant ant /opt/apache-ant-$ANT_VERSION/bin/ant 10000
+
+RUN set -ex \
+    # Install Maven
+    && mkdir -p $MAVEN_HOME \
+    && curl -LSso /var/tmp/apache-maven-$MAVEN_VERSION-bin.tar.gz https://archive.apache.org/dist/maven/maven-3/$MAVEN_VERSION/binaries/apache-maven-$MAVEN_VERSION-bin.tar.gz \
+    && echo "$MAVEN_DOWNLOAD_SHA512 /var/tmp/apache-maven-$MAVEN_VERSION-bin.tar.gz" | sha512sum -c - \
+    && tar xzf /var/tmp/apache-maven-$MAVEN_VERSION-bin.tar.gz -C $MAVEN_HOME --strip-components=1 \
+    && rm /var/tmp/apache-maven-$MAVEN_VERSION-bin.tar.gz \
+    && update-alternatives --install /usr/bin/mvn mvn /opt/maven/bin/mvn 10000 \
+    && mkdir -p $MAVEN_CONFIG_HOME \
+    # Install Gradle
+    && mkdir -p $GRADLE_PATH \
+    && for version in $INSTALLED_GRADLE_VERSIONS; do { \
+       wget -q "https://services.gradle.org/distributions/gradle-$version-all.zip" -O "$GRADLE_PATH/gradle-$version-all.zip" \
+       && unzip -q "$GRADLE_PATH/gradle-$version-all.zip" -d /usr/local \
+       && echo -e "$GRADLE_DOWNLOADS_SHA256" | grep "$version" | sed "s|$version|$GRADLE_PATH/gradle-$version-all.zip|" | sha256sum -c - \
+       && rm "$GRADLE_PATH/gradle-$version-all.zip" \
+       && mkdir "/tmp/gradle-$version" \
+       && "/usr/local/gradle-$version/bin/gradle" -p "/tmp/gradle-$version" init \
+       && "/usr/local/gradle-$version/bin/gradle" -p "/tmp/gradle-$version" wrapper \
+       # Android Studio uses the "-all" distribution for it's wrapper script.
+       && perl -pi -e "s/gradle-$version-bin.zip/gradle-$version-all.zip/" "/tmp/gradle-$version/gradle/wrapper/gradle-wrapper.properties" \
+       && "/tmp/gradle-$version/gradlew" -p "/tmp/gradle-$version" init \
+       && rm -rf "/tmp/gradle-$version" \
+       && if [ "$version" != "$GRADLE_VERSION" ]; then rm -rf "/usr/local/gradle-$version"; fi; \
+     }; done \
+    # Install default GRADLE_VERSION to path
+    && ln -s /usr/local/gradle-$GRADLE_VERSION/bin/gradle /usr/bin/gradle \
+    && rm -rf $GRADLE_PATH \
+    # Install SBT
+    && curl -fSL "https://github.com/sbt/sbt/releases/download/v${SBT_VERSION}/sbt-${SBT_VERSION}.tgz" -o sbt.tgz \
+    && echo "${SBT_DOWNLOAD_SHA256} *sbt.tgz" | sha256sum -c - \
+    && tar xzf sbt.tgz -C /usr/local/bin/ \
+    && rm sbt.tgz \
+    && for version in $LOG4J_UNSAFE_VERSIONS; do find / -name log4j*-$version.jar | xargs rm -f; done
+
+ENV PATH "/usr/local/bin/sbt/bin:$PATH"
+RUN sbt version -Dsbt.rootdir=true
+# Cleanup
+RUN rm -fr /tmp/* /var/tmp/*
+#****************     END JAVA     ****************************************************
\ No newline at end of file
diff --git a/Docker/5.9.0/ubuntu/22.04/Dockerfile b/Docker/5.9.0/ubuntu/22.04/Dockerfile
new file mode 100644
index 00000000000..b21529a68ba
--- /dev/null
+++ b/Docker/5.9.0/ubuntu/22.04/Dockerfile
@@ -0,0 +1,106 @@
+FROM swift:5.9-jammy
+
+# Install Open SSL -- dependency of CRT
+RUN apt-get -q update && \
+  apt-get -q install -y libssl-dev
+
+## The rest of this file is from https://github.com/aws/aws-codebuild-docker-images/blob/master/ubuntu/standard/5.0/Dockerfile
+
+# Install other utilities
+RUN apt-get install -y -qq --no-install-recommends \
+  curl unzip wget
+
+## Install Java
+
+#****************      JAVA     ****************************************************
+ENV JAVA_17_HOME="/usr/lib/jvm/java-17-amazon-corretto" \
+    JDK_17_HOME="/usr/lib/jvm/java-17-amazon-corretto" \
+    JRE_17_HOME="/usr/lib/jvm/java-17-amazon-corretto"
+ARG ANT_VERSION=1.10.12
+ARG MAVEN_HOME="/opt/maven"
+ARG MAVEN_VERSION=3.8.7
+ARG INSTALLED_GRADLE_VERSIONS="7.6"
+ARG GRADLE_VERSION=7.6
+ARG SBT_VERSION=1.8.2
+ARG GRADLE_PATH="$SRC_DIR/gradle"
+ARG ANT_DOWNLOAD_SHA512="2287dc5cfc21043c14e5413f9afb1c87c9f266ec2a9ba2d3bf2285446f6e4ccb59b558bf2e5c57911a05dfa293c7d5c7ad60ac9f744ba11406f4e6f9a27b2403"
+ARG MAVEN_DOWNLOAD_SHA512="21c2be0a180a326353e8f6d12289f74bc7cd53080305f05358936f3a1b6dd4d91203f4cc799e81761cf5c53c5bbe9dcc13bdb27ec8f57ecf21b2f9ceec3c8d27"
+ARG GRADLE_DOWNLOADS_SHA256="312eb12875e1747e05c2f81a4789902d7e4ec5defbd1eefeaccc08acf096505d 7.6"
+ARG SBT_DOWNLOAD_SHA256="1f65344da074dbd66dfefa93c0eff8d319d772e5cad47fcbeb6ae178bbdf4686"
+ENV LOG4J_UNSAFE_VERSIONS="2.11.1 1.2.8"
+
+ARG MAVEN_CONFIG_HOME="/root/.m2"
+
+ENV JAVA_HOME="$JAVA_17_HOME" \
+    JDK_HOME="$JDK_17_HOME" \
+    JRE_HOME="$JRE_17_HOME"
+
+ENV PATH="${PATH}:/opt/tools"
+
+RUN set -ex \
+    && apt-get update \
+    && apt-get install -y -qq software-properties-common apt-utils \
+    # Install Corretto 17
+    && wget -qO- https://apt.corretto.aws/corretto.key | apt-key add - \
+    && add-apt-repository 'deb https://apt.corretto.aws stable main' \
+    && apt-get update \
+    && apt-get install -y -qq java-17-amazon-corretto-jdk \
+    && apt-get install -y -qq --no-install-recommends ca-certificates-java \
+    # Ensure Java cacerts symlink points to valid location
+    && update-ca-certificates -f \
+    && dpkg --add-architecture i386 \
+    && apt-get update \
+    && for tool_path in $JAVA_HOME/bin/*; do \
+          tool=`basename $tool_path`; \
+          update-alternatives --install /usr/bin/$tool $tool $tool_path 10000; \
+          update-alternatives --set $tool $tool_path; \
+        done \
+     && rm $JAVA_HOME/lib/security/cacerts && ln -s /etc/ssl/certs/java/cacerts $JAVA_HOME/lib/security/cacerts \
+    # Install Ant
+    && curl -LSso /var/tmp/apache-ant-$ANT_VERSION-bin.tar.gz https://archive.apache.org/dist/ant/binaries/apache-ant-$ANT_VERSION-bin.tar.gz  \
+    && echo "$ANT_DOWNLOAD_SHA512 /var/tmp/apache-ant-$ANT_VERSION-bin.tar.gz" | sha512sum -c - \
+    && tar -xzf /var/tmp/apache-ant-$ANT_VERSION-bin.tar.gz -C /opt \
+    && rm /var/tmp/apache-ant-$ANT_VERSION-bin.tar.gz \
+    && update-alternatives --install /usr/bin/ant ant /opt/apache-ant-$ANT_VERSION/bin/ant 10000
+
+RUN set -ex \
+    # Install Maven
+    && mkdir -p $MAVEN_HOME \
+    && curl -LSso /var/tmp/apache-maven-$MAVEN_VERSION-bin.tar.gz https://archive.apache.org/dist/maven/maven-3/$MAVEN_VERSION/binaries/apache-maven-$MAVEN_VERSION-bin.tar.gz \
+    && echo "$MAVEN_DOWNLOAD_SHA512 /var/tmp/apache-maven-$MAVEN_VERSION-bin.tar.gz" | sha512sum -c - \
+    && tar xzf /var/tmp/apache-maven-$MAVEN_VERSION-bin.tar.gz -C $MAVEN_HOME --strip-components=1 \
+    && rm /var/tmp/apache-maven-$MAVEN_VERSION-bin.tar.gz \
+    && update-alternatives --install /usr/bin/mvn mvn /opt/maven/bin/mvn 10000 \
+    && mkdir -p $MAVEN_CONFIG_HOME \
+    # Install Gradle
+    && mkdir -p $GRADLE_PATH \
+    && for version in $INSTALLED_GRADLE_VERSIONS; do { \
+       wget -q "https://services.gradle.org/distributions/gradle-$version-all.zip" -O "$GRADLE_PATH/gradle-$version-all.zip" \
+       && unzip -q "$GRADLE_PATH/gradle-$version-all.zip" -d /usr/local \
+       && echo "$GRADLE_DOWNLOADS_SHA256" | grep "$version" | sed "s|$version|$GRADLE_PATH/gradle-$version-all.zip|" | sha256sum -c - \
+       && rm "$GRADLE_PATH/gradle-$version-all.zip" \
+       && mkdir "/tmp/gradle-$version" \
+       && "/usr/local/gradle-$version/bin/gradle" -p "/tmp/gradle-$version" init \
+       && "/usr/local/gradle-$version/bin/gradle" -p "/tmp/gradle-$version" wrapper \
+       # Android Studio uses the "-all" distribution for it's wrapper script.
+       && perl -pi -e "s/gradle-$version-bin.zip/gradle-$version-all.zip/" "/tmp/gradle-$version/gradle/wrapper/gradle-wrapper.properties" \
+       && "/tmp/gradle-$version/gradlew" -p "/tmp/gradle-$version" init \
+       && rm -rf "/tmp/gradle-$version" \
+       && if [ "$version" != "$GRADLE_VERSION" ]; then rm -rf "/usr/local/gradle-$version"; fi; \
+     }; done \
+    # Install default GRADLE_VERSION to path
+    && ln -s /usr/local/gradle-$GRADLE_VERSION/bin/gradle /usr/bin/gradle \
+    && rm -rf $GRADLE_PATH \
+    # Install SBT
+    && curl -fSL "https://github.com/sbt/sbt/releases/download/v${SBT_VERSION}/sbt-${SBT_VERSION}.tgz" -o sbt.tgz \
+    && echo "${SBT_DOWNLOAD_SHA256} *sbt.tgz" | sha256sum -c - \
+    && tar xzf sbt.tgz -C /usr/local/bin/ \
+    && rm sbt.tgz \
+    && for version in $LOG4J_UNSAFE_VERSIONS; do find / -name log4j*-$version.jar | xargs rm -f; done
+
+ENV PATH "/usr/local/bin/sbt/bin:$PATH"
+RUN sbt version -Dsbt.rootdir=true
+# Cleanup
+RUN rm -fr /var/lib/apt/lists/* /tmp/* /var/tmp/* \
+    && apt-get clean
+#****************     END JAVA     ****************************************************
\ No newline at end of file
diff --git a/README.md b/README.md
index 2225b118020..9b900ecd8de 100644
--- a/README.md
+++ b/README.md
@@ -16,7 +16,7 @@ This library is licensed under the Apache 2.0 License.
 ## Requirements
 
 The AWS SDK for Swift supports the following:
-- Swift 5.5 or higher
+- Swift 5.7 or higher
 - iOS & iPadOS 13.0 or higher
 - macOS 10.15 or higher
 - Ubuntu Linux 16.04 LTS or higher
diff --git a/codegen/Package.swift b/codegen/Package.swift
index 938635d2612..3378aa90951 100644
--- a/codegen/Package.swift
+++ b/codegen/Package.swift
@@ -87,7 +87,7 @@ func appendLibTarget(name: String, path: String) {
 
 func appendTstTarget(name: String, path: String, dependency: String) {
     var dependencies: [Target.Dependency]  = [.product(name: "SmithyTestUtil", package: "smithy-swift")]
-#if swift(>=5.5)
+#if swift(>=5.7)
     dependencies.append(.byNameItem(name: dependency, condition: nil))
 #else
     dependencies.append(._byNameItem(name: dependency, condition: nil))
diff --git a/codegen/protocol-test-codegen-local/build.gradle.kts b/codegen/protocol-test-codegen-local/build.gradle.kts
index 160c6daaa6a..f0a2c58603d 100644
--- a/codegen/protocol-test-codegen-local/build.gradle.kts
+++ b/codegen/protocol-test-codegen-local/build.gradle.kts
@@ -58,7 +58,7 @@ fun generateSmithyBuild(tests: List<CodegenTest>): String {
                       "gitRepo": "https://github.com/aws-amplify/smithy-swift.git",
                       "author": "Amazon Web Services",
                       "homepage": "https://docs.amplify.aws/",
-                      "swiftVersion": "5.5.0",
+                      "swiftVersion": "5.7.0",
                       "build": {
                         "rootProject": true
                       }
diff --git a/codegen/protocol-test-codegen/build.gradle.kts b/codegen/protocol-test-codegen/build.gradle.kts
index d4a955e02ef..00c13664bc1 100644
--- a/codegen/protocol-test-codegen/build.gradle.kts
+++ b/codegen/protocol-test-codegen/build.gradle.kts
@@ -112,7 +112,7 @@ fun generateSmithyBuild(tests: List<ProtocolTest>): String {
                   "gitRepo": "https://github.com/aws-amplify/smithy-swift.git",
                   "author": "Amazon Web Services",
                   "homepage": "https://docs.amplify.aws/",
-                  "swiftVersion": "5.5.0"
+                  "swiftVersion": "5.7.0"
                 }
               }
             }"""
diff --git a/codegen/sdk-codegen/build.gradle.kts b/codegen/sdk-codegen/build.gradle.kts
index 87b31f8279d..37a1c8bbab2 100644
--- a/codegen/sdk-codegen/build.gradle.kts
+++ b/codegen/sdk-codegen/build.gradle.kts
@@ -99,7 +99,7 @@ fun generateSmithyBuild(services: List<AwsService>): String {
                       "sdkId": "${service.sdkId}",
                       "author": "Amazon Web Services",
                       "gitRepo": "${service.gitRepo}",
-                      "swiftVersion": "5.5.0",
+                      "swiftVersion": "5.7.0",
                       "build": {
                           "rootProject": $buildStandaloneSdk
                       }
diff --git a/codegen/smithy-aws-swift-codegen/src/test/kotlin/software/amazon/smithy/aws/swift/codegen/TestContextGenerator.kt b/codegen/smithy-aws-swift-codegen/src/test/kotlin/software/amazon/smithy/aws/swift/codegen/TestContextGenerator.kt
index e3607354c52..a500af31980 100644
--- a/codegen/smithy-aws-swift-codegen/src/test/kotlin/software/amazon/smithy/aws/swift/codegen/TestContextGenerator.kt
+++ b/codegen/smithy-aws-swift-codegen/src/test/kotlin/software/amazon/smithy/aws/swift/codegen/TestContextGenerator.kt
@@ -80,7 +80,7 @@ class TestContextGenerator {
                 .withMember("homepage", Node.from("https://docs.amplify.aws/"))
                 .withMember("author", Node.from("Amazon Web Services"))
                 .withMember("gitRepo", Node.from("https://github.com/awslabs/aws-sdk-swift.git"))
-                .withMember("swiftVersion", Node.from("5.5.0"))
+                .withMember("swiftVersion", Node.from("5.7"))
                 .build()
         }
         fun listFilesFromManifest(manifest: MockManifest): String {