diff --git a/sjsonnet/src-js/sjsonnet/Platform.scala b/sjsonnet/src-js/sjsonnet/Platform.scala
index f5cac641..280a7882 100644
--- a/sjsonnet/src-js/sjsonnet/Platform.scala
+++ b/sjsonnet/src-js/sjsonnet/Platform.scala
@@ -40,9 +40,7 @@ object Platform {
     throw new Exception("hashFile not implemented in Scala.js")
   }
 
-  private val regexCache = new util.LinkedHashMap[String, Pattern](100, 0.75f, true) {
-    override def removeEldestEntry(eldest: util.Map.Entry[String, Pattern]): Boolean = size() > 100
-  }
+  private val regexCache = new util.concurrent.ConcurrentHashMap[String, Pattern]
   def getPatternFromCache(pat: String) : Pattern = regexCache.computeIfAbsent(pat, _ => Pattern.compile(pat))
 
   def regexQuote(s: String): String = Pattern.quote(s)
diff --git a/sjsonnet/src-jvm/sjsonnet/Platform.scala b/sjsonnet/src-jvm/sjsonnet/Platform.scala
index da9e4cba..9d7d6d27 100644
--- a/sjsonnet/src-jvm/sjsonnet/Platform.scala
+++ b/sjsonnet/src-jvm/sjsonnet/Platform.scala
@@ -111,9 +111,7 @@ object Platform {
     hash.getValue.toString
   }
 
-  private val regexCache = new util.LinkedHashMap[String, Pattern](100, 0.75f, true) {
-    override def removeEldestEntry(eldest: util.Map.Entry[String, Pattern]): Boolean = size() > 100
-  }
+  private val regexCache = new util.concurrent.ConcurrentHashMap[String, Pattern]
   def getPatternFromCache(pat: String) : Pattern = regexCache.computeIfAbsent(pat, _ => Pattern.compile(pat))
 
   def regexQuote(s: String): String = Pattern.quote(s)
diff --git a/sjsonnet/src-native/sjsonnet/Platform.scala b/sjsonnet/src-native/sjsonnet/Platform.scala
index 7baaea2f..6bcfed33 100644
--- a/sjsonnet/src-native/sjsonnet/Platform.scala
+++ b/sjsonnet/src-native/sjsonnet/Platform.scala
@@ -53,9 +53,7 @@ object Platform {
     scala.io.Source.fromFile(file).mkString
   }
 
-  private val regexCache = new util.LinkedHashMap[String, Pattern](100, 0.75f, true) {
-    override def removeEldestEntry(eldest: util.Map.Entry[String, Pattern]): Boolean = size() > 100
-  }
+  private val regexCache = new util.concurrent.ConcurrentHashMap[String, Pattern]
   def getPatternFromCache(pat: String) : Pattern = regexCache.computeIfAbsent(pat, _ => Pattern.compile(pat))
 
   def regexQuote(s: String): String = Pattern.quote(s)