diff --git a/CHANGES.md b/CHANGES.md
index 883ac7a..da51745 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -3,7 +3,7 @@
 ### 4.0.0 (2024-02-28)
 
 - Breaking: Remove `--pre` on sources from generated `requirements-mxdev.txt`.
-  Usually it is not needed any longer.
+  Usually it is not needed any longer, at least withy pip 23.x.
   This is a breaking change if you rely on the `--pre` option being present in the generated file.
   Now the `--pre` option should be added to `pip install` when the generated file is used.
   This change enables the use of the generated file with the alternative pip replacement `uv`.
diff --git a/README.md b/README.md
index 4f18da0..fe91f59 100644
--- a/README.md
+++ b/README.md
@@ -277,7 +277,7 @@ Mxdev will
 
 Now, use the generated requirements and constraints files with i.e. `pip install -r requirements-mxdev.txt`.
 
-**mxdev >=2.0 needs pip version 22 at minimum to work properly**
+**mxdev >=4.0 needs pip version 23 at minimum to work properly**
 
 ## Example Configuration