diff --git a/src/main/scala/com/github/mrpowers/spark/fast/tests/DataframeUtil.scala b/src/main/scala/com/github/mrpowers/spark/fast/tests/DataframeUtil.scala
index 4de2724..84bdf1f 100644
--- a/src/main/scala/com/github/mrpowers/spark/fast/tests/DataframeUtil.scala
+++ b/src/main/scala/com/github/mrpowers/spark/fast/tests/DataframeUtil.scala
@@ -6,7 +6,7 @@ import org.apache.spark.sql.Row
 import com.github.mrpowers.spark.fast.tests.ufansi.FansiExtensions.StrOps
 object DataframeUtil {
 
-  def showDataframeDiff(
+  private[mrpowers] def showDataframeDiff(
       header: (String, String),
       actual: Array[Row],
       expected: Array[Row],
diff --git a/src/main/scala/com/github/mrpowers/spark/fast/tests/ufansi/FansiExtensions.scala b/src/main/scala/com/github/mrpowers/spark/fast/tests/ufansi/FansiExtensions.scala
index 828dace..5af5d3d 100644
--- a/src/main/scala/com/github/mrpowers/spark/fast/tests/ufansi/FansiExtensions.scala
+++ b/src/main/scala/com/github/mrpowers/spark/fast/tests/ufansi/FansiExtensions.scala
@@ -1,6 +1,6 @@
 package com.github.mrpowers.spark.fast.tests.ufansi
 object FansiExtensions {
-  implicit class StrOps(c: Seq[Str]) {
+  private[mrpowers] implicit class StrOps(c: Seq[Str]) {
     def mkStr(start: Str, sep: Str, end: Str): Str =
       start ++ c.reduce(_ ++ sep ++ _) ++ end
   }