diff --git a/Toolkit.js.scala b/Toolkit.js.scala
index 0195440..8606c56 100644
--- a/Toolkit.js.scala
+++ b/Toolkit.js.scala
@@ -1,4 +1,4 @@
-//> using scala "2.13", "2.12", "3"
+//> using scala "2.13", "3"
 //> using publish.name "toolkit"
 //> using lib "com.softwaremill.sttp.client4::core::4.0.0-M1"
 //> using lib "com.softwaremill.sttp.client4::upickle::4.0.0-M1"
diff --git a/Toolkit.scala b/Toolkit.scala
index e5b65bb..967f4cc 100644
--- a/Toolkit.scala
+++ b/Toolkit.scala
@@ -1,4 +1,4 @@
-//> using scala "2.13", "2.12", "3"
+//> using scala "2.13", "3"
 //> using publish.name "toolkit"
 //> using lib "com.softwaremill.sttp.client4::core::4.0.0-M1"
 //> using lib "com.softwaremill.sttp.client4::upickle::4.0.0-M1"
diff --git a/ToolkitTest.scala b/ToolkitTest.scala
index 52e140a..6b7faf4 100644
--- a/ToolkitTest.scala
+++ b/ToolkitTest.scala
@@ -1,3 +1,3 @@
-//> using scala "2.13", "2.12", "3"
+//> using scala "2.13", "3"
 //> using publish.name "toolkit-test"
 //> using lib "org.scalameta::munit::1.0.0-M7"