diff --git a/Package.swift b/Package.swift
index babaff186b3..7a26288e0d6 100644
--- a/Package.swift
+++ b/Package.swift
@@ -16,7 +16,7 @@ import PackageDescription
 // MARK: - Dynamic Content
 
 let clientRuntimeVersion: Version = "0.107.0"
-let crtVersion: Version = "0.40.0"
+let crtVersion: Version = "0.42.0"
 
 let excludeRuntimeUnitTests = false
 
diff --git a/packageDependencies.plist b/packageDependencies.plist
index df432972fd4..5ea7f95985f 100644
--- a/packageDependencies.plist
+++ b/packageDependencies.plist
@@ -5,7 +5,7 @@
 	<key>awsCRTSwiftBranch</key>
 	<string>main</string>
 	<key>awsCRTSwiftVersion</key>
-	<string>0.40.0</string>
+	<string>0.42.0</string>
 	<key>clientRuntimeBranch</key>
 	<string>main</string>
 	<key>clientRuntimeVersion</key>