diff --git a/buildSrc/src/main/kotlin/Deps.kt b/buildSrc/src/main/kotlin/Deps.kt
index 1e43a78..70adb05 100644
--- a/buildSrc/src/main/kotlin/Deps.kt
+++ b/buildSrc/src/main/kotlin/Deps.kt
@@ -15,9 +15,9 @@
  */
 
 object Versions {
-    val kotlinCoroutines = "1.3.3"
+    val kotlinCoroutines = "1.3.6"
     val kotlin = "1.3.72"
-    val kotlinSerialization = "0.11.1"
+    val kotlinSerialization = "0.20.0"
     val nodePlugin = "1.3.0"
     val dokkaPlugin = "0.9.18"
 
diff --git a/multiplatform-crypto/src/commonTest/kotlin/com/ionspin/kotlin/crypto/util/UtilTest.kt b/multiplatform-crypto/src/commonTest/kotlin/com/ionspin/kotlin/crypto/util/UtilTest.kt
index 74d11d6..c7f0c8e 100644
--- a/multiplatform-crypto/src/commonTest/kotlin/com/ionspin/kotlin/crypto/util/UtilTest.kt
+++ b/multiplatform-crypto/src/commonTest/kotlin/com/ionspin/kotlin/crypto/util/UtilTest.kt
@@ -59,13 +59,13 @@ class UtilTest {
     fun testUIntToLittleEndianArray() {
         assertTrue {
             val original = 1U
-            val converted = original.toBigEndianUByteArray()
-            converted[4] = 1U
+            val converted = original.toLittleEndianUByteArray()
+            converted[3] = 1U
             true
         }
         assertTrue {
             val original = 0xAABBCCDDU
-            val converted = original.toBigEndianUByteArray()
+            val converted = original.toLittleEndianUByteArray()
             converted[0] == 0xDDU.toUByte() &&
                     converted[1] == 0xCCU.toUByte() &&
                     converted[2] == 0xBBU.toUByte() &&