diff --git a/README.macos b/README.macos
index d1cfb00e..19117377 100644
--- a/README.macos
+++ b/README.macos
@@ -1,4 +1,4 @@
-% README.macos 2014-01-18
+% README.macos 2024-01-18
 % Tested on macOS 12.7.2 Monterey VirtualBox (thanks to https://github.com/myspaghetti/macos-virtualbox)
 
 1. Prerequisites for building zint and zint-qt
diff --git a/README.windows b/README.windows
index 35770952..51862546 100644
--- a/README.windows
+++ b/README.windows
@@ -1,2 +1,2 @@
-% README.windows 2014-01-17
+% README.windows 2024-01-17
 See "README" in the "win32" sub-directory.