diff --git a/cmake/package/READMEs/README.release.header b/cmake/package/READMEs/README.release.header
index d6569e174..bc380b308 100644
--- a/cmake/package/READMEs/README.release.header
+++ b/cmake/package/READMEs/README.release.header
@@ -1,2 +1,2 @@
-November 2022 release of PcapPlusPlus (v22.11)
-==============================================
+September 2023 release of PcapPlusPlus (v23.09)
+===============================================