diff --git a/CHANGELOG.md b/CHANGELOG.md
index 01b59c6d..b02d1fc6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,6 @@
+# Unreleased
+* core: MutableRegistry.create() is marked protected, as it should not be used directly. Use `require<MyClass>()` instead.
+
 # 1.6.7
 * core: Converter can now force initialize type arguments' companion objects
 * core: Decimal.absoluteValue and Decimal.sign introduced, like other numeric types in Kotlin
diff --git a/core/src/Registry.kt b/core/src/Registry.kt
index a2369a78..0ce9ad10 100644
--- a/core/src/Registry.kt
+++ b/core/src/Registry.kt
@@ -44,7 +44,7 @@ open class SimpleRegistry: MutableRegistry {
   override fun <T: Any> require(type: KClass<T>) = optional(type) ?: create(type).also { register(type, it) }
   override fun <T: Any> requireAll(type: KClass<T>): List<T> = instances.values.filter { type.java.isAssignableFrom(it.javaClass) }.distinct() as List<T>
 
-  open fun <T: Any> create(type: KClass<T>): T = type.createInstance()
+  protected open fun <T: Any> create(type: KClass<T>): T = type.createInstance()
 }
 
 /**