diff --git a/compiler/fir/cones/src/org/jetbrains/kotlin/fir/types/ConeAttributes.kt b/compiler/fir/cones/src/org/jetbrains/kotlin/fir/types/ConeAttributes.kt
index 01a2ff30ab0..fa21e61e111 100644
--- a/compiler/fir/cones/src/org/jetbrains/kotlin/fir/types/ConeAttributes.kt
+++ b/compiler/fir/cones/src/org/jetbrains/kotlin/fir/types/ConeAttributes.kt
@@ -13,7 +13,7 @@ import org.jetbrains.kotlin.utils.addIfNotNull
 import kotlin.properties.ReadOnlyProperty
 import kotlin.reflect.KClass
 
-abstract class ConeAttribute<T : ConeAttribute<T>> : AnnotationMarker {
+abstract class ConeAttribute<out T : ConeAttribute<T>> : AnnotationMarker {
     abstract fun union(other: @UnsafeVariance T?): T?
     abstract fun intersect(other: @UnsafeVariance T?): T?
 
diff --git a/core/descriptors/src/org/jetbrains/kotlin/types/TypeAttributes.kt b/core/descriptors/src/org/jetbrains/kotlin/types/TypeAttributes.kt
index 2657cac2217..2ba8ed9b982 100644
--- a/core/descriptors/src/org/jetbrains/kotlin/types/TypeAttributes.kt
+++ b/core/descriptors/src/org/jetbrains/kotlin/types/TypeAttributes.kt
@@ -14,7 +14,7 @@ import java.util.concurrent.ConcurrentHashMap
 import kotlin.properties.ReadOnlyProperty
 import kotlin.reflect.KClass
 
-abstract class TypeAttribute<T : TypeAttribute<T>> : AnnotationMarker {
+abstract class TypeAttribute<out T : TypeAttribute<T>> : AnnotationMarker {
     abstract fun union(other: @UnsafeVariance T?): T?
     abstract fun intersect(other: @UnsafeVariance T?): T?