diff --git a/Swift.tmLanguage.json b/Swift.tmLanguage.json
index cc0d07b..4e8bdd2 100644
--- a/Swift.tmLanguage.json
+++ b/Swift.tmLanguage.json
@@ -36,7 +36,7 @@
           },
           "patterns": [
             {
-              "match": "\\b(swift|(?:iOS|macOS|OSX|watchOS|tvOS|UIKitForMac)(?:ApplicationExtension)?)\\b(?:\\s+([0-9]+(?:\\.[0-9]+)*\\b))?",
+              "match": "\\b(swift|(?:iOS|macOS|OSX|watchOS|tvOS|visionOS|UIKitForMac)(?:ApplicationExtension)?)\\b(?:\\s+([0-9]+(?:\\.[0-9]+)*\\b))?",
               "captures": {
                 "1": { "name": "keyword.other.platform.os.swift" },
                 "2": { "name": "constant.numeric.swift" }
@@ -465,7 +465,7 @@
             },
 
             {
-              "match": "\\b(os)\\s*(\\()\\s*(?:(macOS|OSX|iOS|tvOS|watchOS|Android|Linux|FreeBSD|Windows|PS4)|\\w+)\\s*(\\))",
+              "match": "\\b(os)\\s*(\\()\\s*(?:(macOS|OSX|iOS|tvOS|watchOS|visionOS|Android|Linux|FreeBSD|Windows|PS4)|\\w+)\\s*(\\))",
               "captures": {
                 "1": { "name": "keyword.other.condition.swift" },
                 "2": { "name": "punctuation.definition.parameters.begin.swift" },
@@ -1848,7 +1848,7 @@
       },
       "patterns": [
         {
-          "match": "\\s*\\b((?:iOS|macOS|OSX|watchOS|tvOS|UIKitForMac)(?:ApplicationExtension)?)\\b(?:\\s+([0-9]+(?:\\.[0-9]+)*\\b))",
+          "match": "\\s*\\b((?:iOS|macOS|OSX|watchOS|tvOS|visionOS|UIKitForMac)(?:ApplicationExtension)?)\\b(?:\\s+([0-9]+(?:\\.[0-9]+)*\\b))",
           "captures": {
             "1": { "name": "keyword.other.platform.os.swift" },
             "2": { "name": "constant.numeric.swift" }
diff --git a/Swift.tmLanguage.yaml b/Swift.tmLanguage.yaml
index ef64b8f..a58f9be 100644
--- a/Swift.tmLanguage.yaml
+++ b/Swift.tmLanguage.yaml
@@ -29,7 +29,7 @@ repository:
         endCaptures:
           0: { name: punctuation.definition.arguments.end.swift }
         patterns:
-          - match: \b(swift|(?:iOS|macOS|OSX|watchOS|tvOS|UIKitForMac)(?:ApplicationExtension)?)\b(?:\s+([0-9]+(?:\.[0-9]+)*\b))?
+          - match: \b(swift|(?:iOS|macOS|OSX|watchOS|tvOS|visionOS|UIKitForMac)(?:ApplicationExtension)?)\b(?:\s+([0-9]+(?:\.[0-9]+)*\b))?
             captures:
               1: { name: keyword.other.platform.os.swift }
               2: { name: constant.numeric.swift }
@@ -325,7 +325,7 @@ repository:
               3: { name: support.constant.platform.architecture.swift }
               4: { name: punctuation.definition.parameters.end.swift }
 
-          - match: \b(os)\s*(\()\s*(?:(macOS|OSX|iOS|tvOS|watchOS|Android|Linux|FreeBSD|Windows|PS4)|\w+)\s*(\))
+          - match: \b(os)\s*(\()\s*(?:(macOS|OSX|iOS|tvOS|watchOS|visionOS|Android|Linux|FreeBSD|Windows|PS4)|\w+)\s*(\))
             captures:
               1: { name: keyword.other.condition.swift }
               2: { name: punctuation.definition.parameters.begin.swift }
@@ -1514,7 +1514,7 @@ repository:
     endCaptures:
       0: { name: punctuation.definition.arguments.end.swift }
     patterns:
-      - match: \s*\b((?:iOS|macOS|OSX|watchOS|tvOS|UIKitForMac)(?:ApplicationExtension)?)\b(?:\s+([0-9]+(?:\.[0-9]+)*\b))
+      - match: \s*\b((?:iOS|macOS|OSX|watchOS|tvOS|visionOS|UIKitForMac)(?:ApplicationExtension)?)\b(?:\s+([0-9]+(?:\.[0-9]+)*\b))
         captures:
           1: { name: keyword.other.platform.os.swift }
           2: { name: constant.numeric.swift }
diff --git a/Syntaxes/Swift.tmLanguage b/Syntaxes/Swift.tmLanguage
index 21eef45..d8188fd 100644
--- a/Syntaxes/Swift.tmLanguage
+++ b/Syntaxes/Swift.tmLanguage
@@ -91,7 +91,7 @@
             <array>
               <dict>
                 <key>match</key>
-                <string>\b(swift|(?:iOS|macOS|OSX|watchOS|tvOS|UIKitForMac)(?:ApplicationExtension)?)\b(?:\s+([0-9]+(?:\.[0-9]+)*\b))?</string>
+                <string>\b(swift|(?:iOS|macOS|OSX|watchOS|tvOS|visionOS|UIKitForMac)(?:ApplicationExtension)?)\b(?:\s+([0-9]+(?:\.[0-9]+)*\b))?</string>
                 <key>captures</key>
                 <dict>
                   <key>1</key>
@@ -919,7 +919,7 @@
               </dict>
               <dict>
                 <key>match</key>
-                <string>\b(os)\s*(\()\s*(?:(macOS|OSX|iOS|tvOS|watchOS|Android|Linux|FreeBSD|Windows|PS4)|\w+)\s*(\))</string>
+                <string>\b(os)\s*(\()\s*(?:(macOS|OSX|iOS|tvOS|watchOS|visionOS|Android|Linux|FreeBSD|Windows|PS4)|\w+)\s*(\))</string>
                 <key>captures</key>
                 <dict>
                   <key>1</key>
@@ -4168,7 +4168,7 @@
         <array>
           <dict>
             <key>match</key>
-            <string>\s*\b((?:iOS|macOS|OSX|watchOS|tvOS|UIKitForMac)(?:ApplicationExtension)?)\b(?:\s+([0-9]+(?:\.[0-9]+)*\b))</string>
+            <string>\s*\b((?:iOS|macOS|OSX|watchOS|tvOS|visionOS|UIKitForMac)(?:ApplicationExtension)?)\b(?:\s+([0-9]+(?:\.[0-9]+)*\b))</string>
             <key>captures</key>
             <dict>
               <key>1</key>
diff --git a/grammar-test.swift b/grammar-test.swift
index 80c2292..4afb2cd 100644
--- a/grammar-test.swift
+++ b/grammar-test.swift
@@ -34,7 +34,7 @@ __FILE__, __LINE__, __FUNCTION__, __DSO_HANDLE__
 // MARK: Attributes
 
 @available(
-  macOS 1.2, macOSApplicationExtension 1.2, OSX, tvOS 1.4, iOS, watchOS,
+  macOS 1.2, macOSApplicationExtension 1.2, OSX, tvOS 1.4, iOS, watchOS, visionOS,
   swift 5, UIKitForMac,
   noasync,
   introduced, introduced: 1,