diff --git a/.config/mill-version b/.config/mill-version
index 304ad70b7b0..e01e0ddd8e8 100644
--- a/.config/mill-version
+++ b/.config/mill-version
@@ -1 +1 @@
-0.12.3-75-c2bc74
+0.12.4
diff --git a/build.mill b/build.mill
index 307653d4782..1af20417066 100644
--- a/build.mill
+++ b/build.mill
@@ -38,11 +38,11 @@ object Settings {
   )
   val docTags: Seq[String] = Seq(
     "0.11.13",
-    "0.12.3"
+    "0.12.4"
   )
   val mimaBaseVersions: Seq[String] =
     0.to(13).map("0.11." + _) ++
-    Seq("0.12.0", "0.12.1", "0.12.2", "0.12.3")
+    Seq("0.12.0", "0.12.1", "0.12.2", "0.12.3", "0.12.4")
 }
 
 object Deps {