diff --git a/build.sbt b/build.sbt
index d0e1c50..066b0da 100644
--- a/build.sbt
+++ b/build.sbt
@@ -30,6 +30,7 @@ lazy val sharedDependencies =
     circeRefined,
     circeCore,
     circeParser,
+    circeExtras,
     circeGeneric,
     circeDerivation,
     scalaCompat,
diff --git a/openapi-scala/src/main/scala/com/enfore/apis/generator/ScalaGenerator.scala b/openapi-scala/src/main/scala/com/enfore/apis/generator/ScalaGenerator.scala
index 33c66f5..fa6344a 100644
--- a/openapi-scala/src/main/scala/com/enfore/apis/generator/ScalaGenerator.scala
+++ b/openapi-scala/src/main/scala/com/enfore/apis/generator/ScalaGenerator.scala
@@ -175,7 +175,8 @@ object ScalaGenerator {
     s"""
        |package $packageName\n
        |import io.circe._
-       |import io.circe.derivation._\n${refinementImports.getOrElse("")}
+       |import io.circe.generic.extras.Configuration
+       |import io.circe.generic.extras.semiauto._\n${refinementImports.getOrElse("")}
        |$docs
        |final case class $typeName${values
          .map(
@@ -184,6 +185,7 @@ object ScalaGenerator {
          )
          .mkString("(\n\t", ",\n\t", "\n)")} \n
        |object $typeName {
+       |\timplicit val customConfig = Configuration.default.withDefaults
        |\timplicit val circeDecoder: Decoder[$typeName] = deriveDecoder[$typeName](renaming.snakeCase, true, None)
        |\timplicit val circeEncoder: Encoder[$typeName] = deriveEncoder[$typeName](renaming.snakeCase, None)${refinedCode
          .getOrElse("")}
diff --git a/openapi-scala/src/test/scala/com/enfore/apis/generator/ComponentsTypeReprSpec.scala b/openapi-scala/src/test/scala/com/enfore/apis/generator/ComponentsTypeReprSpec.scala
index 35fba1a..d229fa3 100644
--- a/openapi-scala/src/test/scala/com/enfore/apis/generator/ComponentsTypeReprSpec.scala
+++ b/openapi-scala/src/test/scala/com/enfore/apis/generator/ComponentsTypeReprSpec.scala
@@ -29,7 +29,8 @@ class ComponentsTypeReprSpec extends AnyFlatSpec with Matchers {
         |package com.enfore.apis
         |
         |import io.circe._
-        |import io.circe.derivation._
+        |import io.circe.generic.extras.Configuration
+        |import io.circe.generic.extras.semiauto._
         |
         |/**
         |* Test Summary
@@ -37,6 +38,7 @@ class ComponentsTypeReprSpec extends AnyFlatSpec with Matchers {
         |final case class Person(name: String, age: Int)
         |
         |object Person {
+        | implicit val customConfig = Configuration.default.withDefaults
         | implicit val circeDecoder: Decoder[Person] = deriveDecoder[Person](renaming.snakeCase, true, None)
         | implicit val circeEncoder: Encoder[Person] = deriveEncoder[Person](renaming.snakeCase, None)
         |}
@@ -61,11 +63,13 @@ class ComponentsTypeReprSpec extends AnyFlatSpec with Matchers {
         |package com.enfore.apis
         |
         |import io.circe._
-        |import io.circe.derivation._
+        |import io.circe.generic.extras.Configuration
+        |import io.circe.generic.extras.semiauto._
         |
         |final case class Person()
         |
         |object Person {
+        | implicit val customConfig = Configuration.default.withDefaults
         | implicit val circeDecoder: Decoder[Person] = deriveDecoder[Person](renaming.snakeCase, true, None)
         | implicit val circeEncoder: Encoder[Person] = deriveEncoder[Person](renaming.snakeCase, None)
         |}
@@ -93,11 +97,13 @@ class ComponentsTypeReprSpec extends AnyFlatSpec with Matchers {
         |package com.enfore.apis
         |
         |import io.circe._
-        |import io.circe.derivation._
+        |import io.circe.generic.extras.Configuration
+        |import io.circe.generic.extras.semiauto._
         |
         |final case class Person(name: com.enfore.apis.Name, age: Int)
         |
         |object Person {
+        | implicit val customConfig = Configuration.default.withDefaults
         | implicit val circeDecoder: Decoder[Person] = deriveDecoder[Person](renaming.snakeCase, true, None)
         | implicit val circeEncoder: Encoder[Person] = deriveEncoder[Person](renaming.snakeCase, None)
         |}
@@ -148,11 +154,13 @@ class ComponentsTypeReprSpec extends AnyFlatSpec with Matchers {
         |package com.enfore.apis
         |
         |import io.circe._
-        |import io.circe.derivation._
+        |import io.circe.generic.extras.Configuration
+        |import io.circe.generic.extras.semiauto._
         |
         |final case class Person(name: com.enfore.apis.Name = com.enfore.apis.Name.MAGIC, age: Int)
         |
         |object Person {
+        | implicit val customConfig = Configuration.default.withDefaults
         | implicit val circeDecoder: Decoder[Person] = deriveDecoder[Person](renaming.snakeCase, true, None)
         | implicit val circeEncoder: Encoder[Person] = deriveEncoder[Person](renaming.snakeCase, None)
         |}
@@ -184,7 +192,8 @@ class ComponentsTypeReprSpec extends AnyFlatSpec with Matchers {
         |package com.enfore.apis
         |
         |import io.circe._
-        |import io.circe.derivation._
+        |import io.circe.generic.extras.Configuration
+        |import io.circe.generic.extras.semiauto._
         |
         |final case class ParamedType(optionalVal: Option[String],
         | listVal: List[Int],
@@ -193,6 +202,7 @@ class ComponentsTypeReprSpec extends AnyFlatSpec with Matchers {
         | listOpVal: List[Option[Double]])
         |
         | object ParamedType {
+        |   implicit val customConfig = Configuration.default.withDefaults
         |   implicit val circeDecoder: Decoder[ParamedType] = deriveDecoder[ParamedType](renaming.snakeCase, true, None)
         |   implicit val circeEncoder: Encoder[ParamedType] = deriveEncoder[ParamedType](renaming.snakeCase, None)
         | }
@@ -220,7 +230,8 @@ class ComponentsTypeReprSpec extends AnyFlatSpec with Matchers {
         |package com.enfore.apis
         |
         |import io.circe._
-        |import io.circe.derivation._
+        |import io.circe.generic.extras.Configuration
+        |import io.circe.generic.extras.semiauto._
         |
         |import eu.timepit.refined._
         |import eu.timepit.refined.api._
@@ -233,6 +244,7 @@ class ComponentsTypeReprSpec extends AnyFlatSpec with Matchers {
         |final case class RefinedType(stringVal : String Refined AllOf[MinSize[W.`3`.T] :: MaxSize[W.`3`.T] :: HNil])
         |
         |object RefinedType {
+        | implicit val customConfig = Configuration.default.withDefaults
         | implicit val circeDecoder: Decoder[RefinedType] = deriveDecoder[RefinedType](renaming.snakeCase, true, None)
         | implicit val circeEncoder: Encoder[RefinedType] = deriveEncoder[RefinedType](renaming.snakeCase, None)
         | object RefinementConstructors {
@@ -316,7 +328,8 @@ class ComponentsTypeReprSpec extends AnyFlatSpec with Matchers {
         |package com.enfore.apis
         |
         |import io.circe._
-        |import io.circe.derivation._
+        |import io.circe.generic.extras.Configuration
+        |import io.circe.generic.extras.semiauto._
         |
         |import eu.timepit.refined._
         |import eu.timepit.refined.api._
@@ -329,6 +342,7 @@ class ComponentsTypeReprSpec extends AnyFlatSpec with Matchers {
         |final case class RefinedType(listString : List[String] Refined AllOf[MinSize[W.`3`.T] :: MaxSize[W.`3`.T] :: HNil])
         |
         |object RefinedType {
+        | implicit val customConfig = Configuration.default.withDefaults
         | implicit val circeDecoder: Decoder[RefinedType] = deriveDecoder[RefinedType](renaming.snakeCase, true, None)
         | implicit val circeEncoder: Encoder[RefinedType] = deriveEncoder[RefinedType](renaming.snakeCase, None)
         | object RefinementConstructors {
@@ -363,7 +377,8 @@ class ComponentsTypeReprSpec extends AnyFlatSpec with Matchers {
         |package com.enfore.apis
         |
         |import io.circe._
-        |import io.circe.derivation._
+        |import io.circe.generic.extras.Configuration
+        |import io.circe.generic.extras.semiauto._
         |
         |
         |import eu.timepit.refined._
@@ -377,6 +392,7 @@ class ComponentsTypeReprSpec extends AnyFlatSpec with Matchers {
         |final case class RefinedType(nested : Option[String Refined AllOf[MinSize[W.`2`.T] :: MaxSize[W.`2`.T] :: HNil]])
         |
         | object RefinedType {
+        |  implicit val customConfig = Configuration.default.withDefaults
         |  implicit val circeDecoder: Decoder[RefinedType] = deriveDecoder[RefinedType](renaming.snakeCase, true, None)
         |  implicit val circeEncoder: Encoder[RefinedType] = deriveEncoder[RefinedType](renaming.snakeCase, None)
         |
diff --git a/project/Dependencies.scala b/project/Dependencies.scala
index e239a7d..a569c18 100644
--- a/project/Dependencies.scala
+++ b/project/Dependencies.scala
@@ -13,6 +13,7 @@ object Dependencies {
   lazy val circeCore       = "io.circe"               %% "circe-core"              % "0.13.0"
   lazy val circeParser     = "io.circe"               %% "circe-parser"            % "0.13.0"
   lazy val circeGeneric    = "io.circe"               %% "circe-generic"           % "0.13.0"
+  lazy val circeExtras     = "io.circe"               %% "circe-generic-extras"    % "0.13.0"
   lazy val circeYaml       = "io.circe"               %% "circe-yaml"              % "0.13.0"
   lazy val circeDerivation = "io.circe"               %% "circe-derivation"        % "0.13.0-M4"
   lazy val scalaCompat     = "org.scala-lang.modules" %% "scala-collection-compat" % "2.1.2"