diff --git a/src/main/scala/lc/core/captchaProviders.scala b/src/main/scala/lc/core/captchaProviders.scala
index eda74f0..453aafc 100644
--- a/src/main/scala/lc/core/captchaProviders.scala
+++ b/src/main/scala/lc/core/captchaProviders.scala
@@ -23,15 +23,8 @@ object CaptchaProviders {
     }
   }
 
-  private val seed = Config.seed
-  private val random = new scala.util.Random(seed)
   private val config = Config.captchaConfig
 
-  private def getNextRandomInt(max: Int): Int =
-    random.synchronized {
-      random.nextInt(max)
-    }
-
   def getProviderById(id: String): ChallengeProvider = {
     return providers(id)
   }
@@ -58,7 +51,7 @@ object CaptchaProviders {
   def getProvider(param: Parameters): Option[ChallengeProvider] = {
     val providerConfig = filterProviderByParam(param).toList
     if (providerConfig.length > 0) {
-      val randomIndex = getNextRandomInt(providerConfig.length)
+      val randomIndex = Config.getNextRandomInt(providerConfig.length)
       val providerIndex = providerConfig(randomIndex)._1
       val selectedProvider = providers(providerIndex)
       selectedProvider.configure(providerConfig(randomIndex)._2)
diff --git a/src/main/scala/lc/core/config.scala b/src/main/scala/lc/core/config.scala
index 1ada43f..6e57a89 100644
--- a/src/main/scala/lc/core/config.scala
+++ b/src/main/scala/lc/core/config.scala
@@ -49,6 +49,13 @@ object Config {
   val allowedMedia: Set[String] = captchaConfig.flatMap(_.allowedMedia).toSet
   val allowedInputType: Set[String] = captchaConfig.flatMap(_.allowedInputType).toSet
 
+  private val random = new scala.util.Random(seed)
+
+  def getNextRandomInt(max: Int): Int =
+  random.synchronized {
+    random.nextInt(max)
+  }
+
   private def getDefaultConfig(): String = {
     val defaultConfigMap =
       (AttributesEnum.RANDOM_SEED.toString -> new ju.Random().nextInt()) ~