diff --git a/kotlinx-coroutines-core/common/src/channels/Broadcast.kt b/kotlinx-coroutines-core/common/src/channels/Broadcast.kt
index e7a58ccdc4..3db86b660f 100644
--- a/kotlinx-coroutines-core/common/src/channels/Broadcast.kt
+++ b/kotlinx-coroutines-core/common/src/channels/Broadcast.kt
@@ -147,12 +147,14 @@ private open class BroadcastCoroutine<E>(
     override val channel: SendChannel<E>
         get() = this
 
+    @Suppress("MULTIPLE_DEFAULTS_INHERITED_FROM_SUPERTYPES_DEPRECATION_ERROR")
     @Deprecated(level = DeprecationLevel.HIDDEN, message = "Since 1.2.0, binary compatibility with versions <= 1.1.x")
     final override fun cancel(cause: Throwable?): Boolean {
         cancelInternal(cause ?: defaultCancellationException())
         return true
     }
 
+    @Suppress("MULTIPLE_DEFAULTS_INHERITED_FROM_SUPERTYPES_DEPRECATION_ERROR")
     final override fun cancel(cause: CancellationException?) {
         cancelInternal(cause ?: defaultCancellationException())
     }
diff --git a/kotlinx-coroutines-core/common/src/channels/BroadcastChannel.kt b/kotlinx-coroutines-core/common/src/channels/BroadcastChannel.kt
index 9c409d8529..aad64551bd 100644
--- a/kotlinx-coroutines-core/common/src/channels/BroadcastChannel.kt
+++ b/kotlinx-coroutines-core/common/src/channels/BroadcastChannel.kt
@@ -136,6 +136,7 @@ public class ConflatedBroadcastChannel<E> private constructor(
  *
  * This channel is created by `BroadcastChannel(capacity)` factory function invocation.
  */
+@Suppress("MULTIPLE_DEFAULTS_INHERITED_FROM_SUPERTYPES_WHEN_NO_EXPLICIT_OVERRIDE_DEPRECATION_ERROR")
 internal class BroadcastChannelImpl<E>(
     /**
      * Buffer capacity; [Channel.CONFLATED] when this broadcast is conflated.
diff --git a/kotlinx-coroutines-core/common/src/channels/ChannelCoroutine.kt b/kotlinx-coroutines-core/common/src/channels/ChannelCoroutine.kt
index 3fcf388a67..64d6b65759 100644
--- a/kotlinx-coroutines-core/common/src/channels/ChannelCoroutine.kt
+++ b/kotlinx-coroutines-core/common/src/channels/ChannelCoroutine.kt
@@ -21,12 +21,14 @@ internal open class ChannelCoroutine<E>(
         cancelInternal(defaultCancellationException())
     }
 
+    @Suppress("MULTIPLE_DEFAULTS_INHERITED_FROM_SUPERTYPES_DEPRECATION_ERROR")
     @Deprecated(level = DeprecationLevel.HIDDEN, message = "Since 1.2.0, binary compatibility with versions <= 1.1.x")
     final override fun cancel(cause: Throwable?): Boolean {
         cancelInternal(defaultCancellationException())
         return true
     }
 
+    @Suppress("MULTIPLE_DEFAULTS_INHERITED_FROM_SUPERTYPES_DEPRECATION_ERROR")
     final override fun cancel(cause: CancellationException?) {
         if (isCancelled) return // Do not create an exception if the coroutine (-> the channel) is already cancelled
         cancelInternal(cause ?: defaultCancellationException())