diff --git a/README.md b/README.md
index 4dd3dac..11cf1a8 100644
--- a/README.md
+++ b/README.md
@@ -26,7 +26,7 @@ versions
 
 `flink-adt` is released to Maven-central. For SBT, add this snippet to `build.sbt`:
 ```scala
-libraryDependencies += "io.findify" %% "flink-adt" % "0.4.3"
+libraryDependencies += "io.findify" %% "flink-adt" % "0.4.4"
 ```
 
 To use this library, swap `import org.apache.flink.api.scala._` with `import io.findify.flinkadt.api._` and enjoy.
diff --git a/build.sbt b/build.sbt
index 6eab8c2..9070ce2 100644
--- a/build.sbt
+++ b/build.sbt
@@ -1,8 +1,8 @@
 name := "flink-adt"
 
-version := "0.4.3"
+version := "0.4.4"
 
-scalaVersion := "2.12.14"
+scalaVersion := "2.12.15"
 
 organization := "io.findify"
 licenses := Seq("MIT" -> url("https://opensource.org/licenses/MIT"))
@@ -12,15 +12,15 @@ publishMavenStyle := true
 
 publishTo := sonatypePublishToBundle.value
 
-lazy val flinkVersion = "1.13.1"
+lazy val flinkVersion = "1.13.2"
 
 libraryDependencies ++= Seq(
-  "com.propensive"   %% "magnolia"              % "0.17.0",
-  "org.apache.flink" %% "flink-scala"           % flinkVersion % "provided",
-  "org.apache.flink" %% "flink-streaming-scala" % flinkVersion % "provided",
-  "org.apache.flink" %% "flink-test-utils"      % flinkVersion % "test",
-  "org.scalatest"    %% "scalatest"             % "3.2.9"      % "test",
-  "org.typelevel"    %% "cats-core"             % "2.3.0"      % "test"
+  "com.softwaremill.magnolia1_2" % "magnolia_2.12"         % "1.0.0-M5",
+  "org.apache.flink"            %% "flink-scala"           % flinkVersion % "provided",
+  "org.apache.flink"            %% "flink-streaming-scala" % flinkVersion % "provided",
+  "org.apache.flink"            %% "flink-test-utils"      % flinkVersion % "test",
+  "org.scalatest"               %% "scalatest"             % "3.2.10"     % "test",
+  "org.typelevel"               %% "cats-core"             % "2.6.1"      % "test"
 )
 
 scmInfo := Some(
diff --git a/project/build.properties b/project/build.properties
index 83be3cf..215ddd2 100644
--- a/project/build.properties
+++ b/project/build.properties
@@ -1 +1 @@
-sbt.version = 1.5.2
\ No newline at end of file
+sbt.version = 1.5.5
\ No newline at end of file
diff --git a/src/main/scala/io/findify/flinkadt/api/LowPrioImplicits.scala b/src/main/scala/io/findify/flinkadt/api/LowPrioImplicits.scala
index 7e1ae83..5cb2a4a 100644
--- a/src/main/scala/io/findify/flinkadt/api/LowPrioImplicits.scala
+++ b/src/main/scala/io/findify/flinkadt/api/LowPrioImplicits.scala
@@ -1,6 +1,6 @@
 package io.findify.flinkadt.api
 
-import magnolia.Magnolia
+import magnolia1.Magnolia
 import org.apache.flink.api.common.typeinfo.TypeInformation
 import scala.language.experimental.macros
 
diff --git a/src/main/scala/io/findify/flinkadt/api/package.scala b/src/main/scala/io/findify/flinkadt/api/package.scala
index 0c25f4c..93115a1 100644
--- a/src/main/scala/io/findify/flinkadt/api/package.scala
+++ b/src/main/scala/io/findify/flinkadt/api/package.scala
@@ -2,7 +2,7 @@ package io.findify.flinkadt
 
 import io.findify.flinkadt.api.serializer._
 import io.findify.flinkadt.api.typeinfo.{CollectionTypeInformation, CoproductTypeInformation, ProductTypeInformation}
-import magnolia.{CaseClass, Magnolia, SealedTrait}
+import magnolia1.{CaseClass, Magnolia, SealedTrait}
 import org.apache.flink.api.common.ExecutionConfig
 import org.apache.flink.api.common.typeinfo.{BasicTypeInfo, TypeInformation}
 import org.apache.flink.api.common.typeutils.TypeSerializer
@@ -89,7 +89,7 @@ package object api extends LowPrioImplicits {
     }
   }
 
-  private def typeName(tn: magnolia.TypeName): String = {
+  private def typeName(tn: magnolia1.TypeName): String = {
     s"${tn.full}[${tn.typeArguments.map(typeName).mkString(",")}]"
   }
 
diff --git a/src/main/scala/io/findify/flinkadt/api/serializer/CoproductSerializer.scala b/src/main/scala/io/findify/flinkadt/api/serializer/CoproductSerializer.scala
index 3c42b30..d56c693 100644
--- a/src/main/scala/io/findify/flinkadt/api/serializer/CoproductSerializer.scala
+++ b/src/main/scala/io/findify/flinkadt/api/serializer/CoproductSerializer.scala
@@ -4,7 +4,7 @@ import java.io.{ByteArrayInputStream, ByteArrayOutputStream, ObjectInputStream,
 import java.util
 
 import io.findify.flinkadt.api.serializer.CoproductSerializer.CoproductSerializerSnapshot
-import magnolia.{SealedTrait, Subtype, TypeName}
+import magnolia1.{SealedTrait, Subtype, TypeName}
 import org.apache.flink.api.common.typeutils.base.TypeSerializerSingleton
 import org.apache.flink.api.common.typeutils.{
   GenericTypeSerializerSnapshot,
diff --git a/src/main/scala/io/findify/flinkadt/api/typeinfo/ProductTypeInformation.scala b/src/main/scala/io/findify/flinkadt/api/typeinfo/ProductTypeInformation.scala
index 8a28056..a8417d0 100644
--- a/src/main/scala/io/findify/flinkadt/api/typeinfo/ProductTypeInformation.scala
+++ b/src/main/scala/io/findify/flinkadt/api/typeinfo/ProductTypeInformation.scala
@@ -1,6 +1,6 @@
 package io.findify.flinkadt.api.typeinfo
 
-import magnolia.{CaseClass, Param}
+import magnolia1.{CaseClass, Param}
 import org.apache.flink.api.common.ExecutionConfig
 import org.apache.flink.api.common.typeinfo.TypeInformation
 import org.apache.flink.api.common.typeutils.TypeSerializer
diff --git a/src/test/scala/io/findify/flinkadt/SerializerTest.scala b/src/test/scala/io/findify/flinkadt/SerializerTest.scala
index d3d4255..7ece70d 100644
--- a/src/test/scala/io/findify/flinkadt/SerializerTest.scala
+++ b/src/test/scala/io/findify/flinkadt/SerializerTest.scala
@@ -1,6 +1,8 @@
 package io.findify.flinkadt
 
+import cats.data.NonEmptyList
 import io.findify.flinkadt.SerializerTest.DeeplyNested.ModeNested.SuperNested.{Egg, Food}
+import io.findify.flinkadt.SerializerTest.NestedRoot.NestedMiddle.NestedBottom
 
 import java.io.{ByteArrayInputStream, ByteArrayOutputStream, ObjectOutputStream}
 import io.findify.flinkadt.SerializerTest.{
@@ -162,6 +164,16 @@ class SerializerTest extends AnyFlatSpec with Matchers with Inspectors with Test
     all(ser2, Generic(Simple(0, "asd"), Bar(0)))
   }
 
+  it should "serialize nil" in {
+    val ser = implicitly[TypeInformation[NonEmptyList[String]]].createSerializer(null)
+    roundtrip(ser, NonEmptyList.one("a"))
+  }
+
+  it should "serialize triple-nested case clases" in {
+    val ser = implicitly[TypeInformation[Seq[NestedBottom]]].createSerializer(null)
+    roundtrip(ser, List(NestedBottom(Some("a"), None)))
+  }
+
 }
 
 object SerializerTest {
@@ -218,4 +230,10 @@ object SerializerTest {
   case class Generic[T](a: T, b: ADT)
 
   case class ListADT(a: List[ADT])
+
+  object NestedRoot {
+    object NestedMiddle {
+      case class NestedBottom(a: Option[String], b: Option[String])
+    }
+  }
 }