diff --git a/Package@swift-6.0.swift b/Package@swift-6.0.swift
deleted file mode 100644
index 081975c..0000000
--- a/Package@swift-6.0.swift
+++ /dev/null
@@ -1,29 +0,0 @@
-// swift-tools-version: 6.0
-// The swift-tools-version declares the minimum version of Swift required to build this package.
-
-import PackageDescription
-
-let package = Package(
-    name: "Jinja",
-    platforms: [.iOS(.v16), .macOS(.v13)],
-    products: [
-        // Products define the executables and libraries a package produces, making them visible to other packages.
-        .library(
-            name: "Jinja",
-            targets: ["Jinja"]
-        )
-    ],
-    targets: [
-        // Targets are the basic building blocks of a package, defining a module or a test suite.
-        // Targets can depend on other targets in this package and products from dependencies.
-        .target(
-            name: "Jinja",
-            path: "Sources"
-        ),
-        .testTarget(
-            name: "JinjaTests",
-            dependencies: ["Jinja"],
-            path: "Tests"
-        )
-    ]
-)
diff --git a/Sources/Lexer.swift b/Sources/Lexer.swift
index c96373a..35df5c7 100644
--- a/Sources/Lexer.swift
+++ b/Sources/Lexer.swift
@@ -141,23 +141,23 @@ func preprocess(template: String, options: PreprocessOptions = PreprocessOptions
         template.removeLast()
     }
 
-    template = template.replacing(/{#.*?#}/, with: "{##}")
+    template = template.replacing(#/{#.*?#}/#, with: "{##}")
 
     if options.lstripBlocks == true {
-        template = template.replacing(/(?m)^[ \t]*({[#%])/, with: { $0.output.1 })
+        template = template.replacing(#/(?m)^[ \t]*({[#%])/#, with: { $0.output.1 })
     }
 
     if options.trimBlocks == true {
-        template = template.replacing(/([#%]})\n/, with: { $0.output.1 })
+        template = template.replacing(#/([#%]})\n/#, with: { $0.output.1 })
     }
 
     return
         template
-        .replacing(/{##}/, with: "")
-        .replacing(/-%}\s*/, with: "%}")
-        .replacing(/\s*{%-/, with: "{%")
-        .replacing(/-}}\s*/, with: "}}")
-        .replacing(/\s*{{-/, with: "{{")
+        .replacing(#/{##}/#, with: "")
+        .replacing(#/-%}\s*/#, with: "%}")
+        .replacing(#/\s*{%-/#, with: "{%")
+        .replacing(#/-}}\s*/#, with: "}}")
+        .replacing(#/\s*{{-/#, with: "{{")
 }
 
 func tokenize(_ source: String, options: PreprocessOptions = PreprocessOptions()) throws -> [Token] {