diff --git a/Formula/scala.rb b/Formula/scala.rb
index 59258a0d567..d4c4b16b8dc 100644
--- a/Formula/scala.rb
+++ b/Formula/scala.rb
@@ -23,24 +23,26 @@ class Scala < Formula
   end
 
   devel do
-    version "2.13.0-M2"
-    url "https://downloads.lightbend.com/scala/2.13.0-M2/scala-2.13.0-M2.tgz"
-    mirror "https://www.scala-lang.org/files/archive/scala-2.13.0-M2.tgz"
-    mirror "https://downloads.typesafe.com/scala/2.13.0-M2/scala-2.13.0-M2.tgz"
-    sha256 "3b83c4165d6be1854078ace552dd424acca6ddf718a908f103c206847802e808"
+    url "https://downloads.lightbend.com/scala/2.13.0-M3/scala-2.13.0-M3.tgz"
+    mirror "https://www.scala-lang.org/files/archive/scala-2.13.0-M3.tgz"
+    mirror "https://downloads.typesafe.com/scala/2.13.0-M3/scala-2.13.0-M3.tgz"
+    version "2.13.0-M3"
+    sha256 "089a00b17edda24891c2920c2e7346a964fc13a1916ca0418bb6591da636396e"
 
     depends_on :java => "1.8+"
 
     resource "docs" do
-      url "https://downloads.lightbend.com/scala/2.13.0-M2/scala-docs-2.13.0-M2.txz"
-      mirror "https://www.scala-lang.org/files/archive/scala-docs-2.13.0-M2.txz"
-      mirror "https://downloads.typesafe.com/scala/2.13.0-M2/scala-docs-2.13.0-M2.txz"
-      sha256 "add2e7d495aedeab0825b8214eb5782c0ab3fa4b65d2e763203d830364e9bbdc"
+      url "https://downloads.lightbend.com/scala/2.13.0-M3/scala-docs-2.13.0-M3.txz"
+      mirror "https://www.scala-lang.org/files/archive/scala-docs-2.13.0-M3.txz"
+      mirror "https://downloads.typesafe.com/scala/2.13.0-M3/scala-docs-2.13.0-M3.txz"
+      version "2.13.0-M3"
+      sha256 "c600cf90b3fd799ed7249377dac29c2ddab5041b95d263c9c95c15fc3756c6e6"
     end
 
     resource "src" do
-      url "https://github.com/scala/scala/archive/v2.13.0-M2.tar.gz"
-      sha256 "2a5f1b4c1fa5551e36965d0eb001d349cf1a217c1962e780cd3ae7a90e0e996a"
+      url "https://github.com/scala/scala/archive/v2.13.0-M3.tar.gz"
+      version "2.13.0-M3"
+      sha256 "93bc002ac51b02d3f41916d74c2e3c1543d3f092a95117ef50e909fc79e122e8"
     end
   end