diff --git a/bucket/kotlin-native.json b/bucket/kotlin-native.json
index 6b8f696fdc..866f258651 100644
--- a/bucket/kotlin-native.json
+++ b/bucket/kotlin-native.json
@@ -1,12 +1,12 @@
 {
-    "version": "1.4.20",
+    "version": "1.4.21",
     "description": "An LLVM backend for the Kotlin compiler, runtime implementation, and native code generation facility using the LLVM toolchain for native binaries runnable without a virtual machine.",
     "homepage": "https://kotlinlang.org/",
     "license": "Apache-2.0",
     "notes": "Please keep in mind that this is still marked as an experimental feature!",
-    "url": "https://github.com/JetBrains/kotlin/releases/download/v1.4.20/kotlin-native-windows-1.4.20.zip",
-    "hash": "dd48543793b913e8fec39295c8d2232876dd1185d0d019dab15ac793b6cf8c4d",
-    "extract_dir": "kotlin-native-windows-1.4.20",
+    "url": "https://github.com/JetBrains/kotlin/releases/download/v1.4.21/kotlin-native-windows-1.4.21.zip",
+    "hash": "7e97242bb79a945f20ebc749200f30b80865b725054b098d9c2dec3e09a98a3d",
+    "extract_dir": "kotlin-native-windows-1.4.21",
     "bin": [
         "bin\\cinterop.bat",
         "bin\\jsinterop.bat",