diff --git a/upickleReadme/Readme.scalatex b/upickleReadme/Readme.scalatex
index f69a257c8..4ac130656 100644
--- a/upickleReadme/Readme.scalatex
+++ b/upickleReadme/Readme.scalatex
@@ -25,7 +25,7 @@
   )
 )
 
-@sect("uPickle 4.0.0")
+@sect("uPickle 4.0.1")
   @div(display.flex, alignItems.center, flexDirection.column)
     @div
       @a(href := "https://gitter.im/lihaoyi/upickle")(
@@ -74,8 +74,8 @@
 
   @sect{Getting Started}
     @hl.scala
-      "com.lihaoyi" %% "upickle" % "4.0.0" // SBT
-      ivy"com.lihaoyi::upickle:4.0.0" // Mill
+      "com.lihaoyi" %% "upickle" % "4.0.1" // SBT
+      ivy"com.lihaoyi::upickle:4.0.1" // Mill
 
     @p
       And then you can immediately start writing and reading common Scala
@@ -93,8 +93,8 @@
       @p
         For ScalaJS applications, use this dependencies instead:
       @hl.scala
-        "com.lihaoyi" %%% "upickle" % "4.0.0" // SBT
-        ivy"com.lihaoyi::upickle::4.0.0" // Mill
+        "com.lihaoyi" %%% "upickle" % "4.0.1" // SBT
+        ivy"com.lihaoyi::upickle::4.0.1" // Mill
 
     @sect{Scala Versions}
       @p
@@ -915,6 +915,10 @@
       JSON library, and inherits a lot of it's performance from Erik's work.
 
   @sect{Version History}
+    @sect{4.0.1}
+      @ul
+        @li
+          Respect @{Config#tagName} in @code{Reader.merge} and @code{ReadWriter.merge} @lnk("#619", "https://github.com/com-lihaoyi/upickle/pull/619")
     @sect{4.0.0}
       @ul
         @li