diff --git a/libraries/stdlib/api/js-v1/kotlin.coroutines.cancellation.kt b/libraries/stdlib/api/js-v1/kotlin.coroutines.cancellation.kt
index 7c780a279df..fe258a7c943 100644
--- a/libraries/stdlib/api/js-v1/kotlin.coroutines.cancellation.kt
+++ b/libraries/stdlib/api/js-v1/kotlin.coroutines.cancellation.kt
@@ -1,4 +1,3 @@
-@kotlin.ExperimentalStdlibApi
 @kotlin.SinceKotlin(version = "1.4")
 public open class CancellationException : kotlin.IllegalStateException {
     public constructor CancellationException()
diff --git a/libraries/stdlib/api/js/kotlin.coroutines.cancellation.kt b/libraries/stdlib/api/js/kotlin.coroutines.cancellation.kt
index 7c780a279df..fe258a7c943 100644
--- a/libraries/stdlib/api/js/kotlin.coroutines.cancellation.kt
+++ b/libraries/stdlib/api/js/kotlin.coroutines.cancellation.kt
@@ -1,4 +1,3 @@
-@kotlin.ExperimentalStdlibApi
 @kotlin.SinceKotlin(version = "1.4")
 public open class CancellationException : kotlin.IllegalStateException {
     public constructor CancellationException()
diff --git a/libraries/stdlib/js/src/kotlin/coroutines/cancellation/CancellationException.kt b/libraries/stdlib/js/src/kotlin/coroutines/cancellation/CancellationException.kt
index 0438d8b0b19..4f4de5417ca 100644
--- a/libraries/stdlib/js/src/kotlin/coroutines/cancellation/CancellationException.kt
+++ b/libraries/stdlib/js/src/kotlin/coroutines/cancellation/CancellationException.kt
@@ -5,7 +5,6 @@
 
 package kotlin.coroutines.cancellation
 
-@ExperimentalStdlibApi
 @SinceKotlin("1.4")
 public actual open class CancellationException : IllegalStateException {
     actual constructor() : super()
diff --git a/libraries/stdlib/jvm/src/kotlin/coroutines/cancellation/CancellationException.kt b/libraries/stdlib/jvm/src/kotlin/coroutines/cancellation/CancellationException.kt
index aad9d70e07e..e6abcec5518 100644
--- a/libraries/stdlib/jvm/src/kotlin/coroutines/cancellation/CancellationException.kt
+++ b/libraries/stdlib/jvm/src/kotlin/coroutines/cancellation/CancellationException.kt
@@ -7,18 +7,15 @@ package kotlin.coroutines.cancellation
 
 import kotlin.internal.InlineOnly
 
-@ExperimentalStdlibApi
 @SinceKotlin("1.4")
 public actual typealias CancellationException = java.util.concurrent.CancellationException
 
 @InlineOnly
-@ExperimentalStdlibApi
 @SinceKotlin("1.4")
 public actual inline fun CancellationException(message: String?, cause: Throwable?): CancellationException {
     return CancellationException(message).also { it.initCause(cause) }
 }
 @InlineOnly
-@ExperimentalStdlibApi
 @SinceKotlin("1.4")
 public actual inline fun CancellationException(cause: Throwable?): CancellationException {
     return CancellationException(cause?.toString()).also { it.initCause(cause) }
diff --git a/libraries/stdlib/src/kotlin/coroutines/cancellation/CancellationExceptionH.kt b/libraries/stdlib/src/kotlin/coroutines/cancellation/CancellationExceptionH.kt
index 7ac0e7173a1..b64b1ffa9c9 100644
--- a/libraries/stdlib/src/kotlin/coroutines/cancellation/CancellationExceptionH.kt
+++ b/libraries/stdlib/src/kotlin/coroutines/cancellation/CancellationExceptionH.kt
@@ -9,7 +9,6 @@ package kotlin.coroutines.cancellation
  * Thrown by cancellable suspending functions if the coroutine is cancelled while it is suspended.
  * It indicates _normal_ cancellation of a coroutine.
  */
-@ExperimentalStdlibApi
 @SinceKotlin("1.4")
 public expect open class CancellationException : IllegalStateException {
     public constructor()
@@ -19,7 +18,6 @@ public expect open class CancellationException : IllegalStateException {
 /**
  * Creates an instance of [CancellationException] with the given [message] and [cause].
  */
-@ExperimentalStdlibApi
 @SinceKotlin("1.4")
 @Suppress("FunctionName", "NO_ACTUAL_FOR_EXPECT")
 public expect fun CancellationException(message: String?, cause: Throwable?): CancellationException
@@ -27,7 +25,6 @@ public expect fun CancellationException(message: String?, cause: Throwable?): Ca
 /**
  * Creates an instance of [CancellationException] with the given [cause].
  */
-@ExperimentalStdlibApi
 @SinceKotlin("1.4")
 @Suppress("FunctionName", "NO_ACTUAL_FOR_EXPECT")
 public expect fun CancellationException(cause: Throwable?): CancellationException
\ No newline at end of file