diff --git a/CHANGELOG.md b/CHANGELOG.md
index 153ea944..84003cb8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,10 @@
 - Fix Monterey macOS shell version, shell login flag for environments [#1167](https://github.com/yonaskolb/XcodeGen/issues/1167) @bimawa
 - Fixed crash caused by a simultaneous write during a glob processing [#1177](https://github.com/yonaskolb/XcodeGen/issues/1177) @tr1ckyf0x
 
+### Changed
+
+- Run target source pattern matching in parallel [#1197](https://github.com/yonaskolb/XcodeGen/pull/1197) @alvarhansen
+
 ## 2.27.0
 
 #### Added
diff --git a/Sources/XcodeGenKit/SourceGenerator.swift b/Sources/XcodeGenKit/SourceGenerator.swift
index fab9d3fe..e788ef09 100644
--- a/Sources/XcodeGenKit/SourceGenerator.swift
+++ b/Sources/XcodeGenKit/SourceGenerator.swift
@@ -359,7 +359,7 @@ class SourceGenerator {
         let rootSourcePath = project.basePath + targetSource.path
 
         return Set(
-            patterns.map { pattern in
+            patterns.parallelMap { pattern in
                 guard !pattern.isEmpty else { return [] }
                 return Glob(pattern: "\(rootSourcePath)/\(pattern)")
                     .map { Path($0) }