diff --git a/project/DottySupport.scala b/project/DottySupport.scala
index 22b1bf12826..6ff9c26e167 100644
--- a/project/DottySupport.scala
+++ b/project/DottySupport.scala
@@ -12,7 +12,7 @@ import sbt.librarymanagement.{
   * Settings to support validation of TastyUnpickler against the release of dotty with the matching TASTy version
   */
 object TastySupport {
-  val supportedTASTyRelease = "3.4.0" // TASTY: 28.4-0
+  val supportedTASTyRelease = "3.4.1" // TASTY: 28.4-0
   val scala3Compiler = "org.scala-lang" % "scala3-compiler_3" % supportedTASTyRelease
   val scala3Library = "org.scala-lang" % "scala3-library_3" % supportedTASTyRelease