diff --git a/src/main/scala/org/playframework/cachecontrol/VaryParser.scala b/src/main/scala/org/playframework/cachecontrol/VaryParser.scala
index 9ea7d38..507fce2 100644
--- a/src/main/scala/org/playframework/cachecontrol/VaryParser.scala
+++ b/src/main/scala/org/playframework/cachecontrol/VaryParser.scala
@@ -12,7 +12,7 @@ object VaryParser {
     if (fieldValue.startsWith("*")) {
       List(HeaderName("*"))
     } else {
-      val headerNames = fieldValue.split(",\\s*").map(HeaderName)
+      val headerNames = fieldValue.split(",\\s*").map(HeaderName.apply)
       headerNames.toList
     }
   }
diff --git a/src/main/scala/org/playframework/cachecontrol/WarningParser.scala b/src/main/scala/org/playframework/cachecontrol/WarningParser.scala
index 3741739..b1bfb32 100644
--- a/src/main/scala/org/playframework/cachecontrol/WarningParser.scala
+++ b/src/main/scala/org/playframework/cachecontrol/WarningParser.scala
@@ -33,11 +33,11 @@ object WarningParser {
 
     val warnAgent = regex("\\S+".r) <~ space
 
-    val warnText = stringLiteral ^^ { s => s.replaceAllLiterally('"'.toString, "") }
+    val warnText = stringLiteral ^^ { s => s.replace('"'.toString, "") }
 
     val warnDate = opt(space ~> stringLiteral) ^^ { maybeString =>
       maybeString.map { s =>
-        val chomp = s.replaceAllLiterally('"'.toString, "")
+        val chomp = s.replace('"'.toString, "")
         HttpDate.parse(chomp)
       }
     }