diff --git a/Components/BuildExtensions/Package.resolved b/Components/BuildExtensions/Package.resolved
index dbb940b63..6923f1483 100644
--- a/Components/BuildExtensions/Package.resolved
+++ b/Components/BuildExtensions/Package.resolved
@@ -6,8 +6,8 @@
       "kind" : "remoteSourceControl",
       "location" : "https://github.com/swiftlang/swift-syntax",
       "state" : {
-        "revision" : "79e4b74a295b6eb74a8b585e3a39d29e70c1dbd1",
-        "version" : "603.0.2"
+        "revision" : "050f1a346fbbac0ca2cfb15a95274f7bd1cf0ccf",
+        "version" : "604.0.0"
       }
     }
   ],
diff --git a/Components/BuildExtensions/Package.swift b/Components/BuildExtensions/Package.swift
index 3e4adc3a4..07e388e68 100644
--- a/Components/BuildExtensions/Package.swift
+++ b/Components/BuildExtensions/Package.swift
@@ -13,7 +13,7 @@ let package = Package(
         .library(name: "Macros", targets: ["Macros"])
     ],
     dependencies: [
-        .package(url: "https://github.com/swiftlang/swift-syntax", from: "603.0.2")
+        .package(url: "https://github.com/swiftlang/swift-syntax", from: "604.0.0")
     ],
     targets: [
         // The public macro declarations imported by the app.
diff --git a/ElementX.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved b/ElementX.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved
index fbc6faebe..4ab2d5e14 100644
--- a/ElementX.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved
+++ b/ElementX.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved
@@ -302,8 +302,8 @@
       "kind" : "remoteSourceControl",
       "location" : "https://github.com/swiftlang/swift-syntax",
       "state" : {
-        "revision" : "79e4b74a295b6eb74a8b585e3a39d29e70c1dbd1",
-        "version" : "603.0.2"
+        "revision" : "050f1a346fbbac0ca2cfb15a95274f7bd1cf0ccf",
+        "version" : "604.0.0"
       }
     },
     {
diff --git a/compound-ios/Inspector/Inspector.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved b/compound-ios/Inspector/Inspector.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved
index c2ff876a8..50d9ce144 100644
--- a/compound-ios/Inspector/Inspector.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved
+++ b/compound-ios/Inspector/Inspector.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved
@@ -42,8 +42,8 @@
       "kind" : "remoteSourceControl",
       "location" : "https://github.com/swiftlang/swift-syntax",
       "state" : {
-        "revision" : "79e4b74a295b6eb74a8b585e3a39d29e70c1dbd1",
-        "version" : "603.0.2"
+        "revision" : "050f1a346fbbac0ca2cfb15a95274f7bd1cf0ccf",
+        "version" : "604.0.0"
       }
     },
     {
diff --git a/compound-ios/Package.resolved b/compound-ios/Package.resolved
index c2ff876a8..50d9ce144 100644
--- a/compound-ios/Package.resolved
+++ b/compound-ios/Package.resolved
@@ -42,8 +42,8 @@
       "kind" : "remoteSourceControl",
       "location" : "https://github.com/swiftlang/swift-syntax",
       "state" : {
-        "revision" : "79e4b74a295b6eb74a8b585e3a39d29e70c1dbd1",
-        "version" : "603.0.2"
+        "revision" : "050f1a346fbbac0ca2cfb15a95274f7bd1cf0ccf",
+        "version" : "604.0.0"
       }
     },
     {