diff --git a/SECURITY.md b/SECURITY.md
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--- a/SECURITY.md
+++ b/SECURITY.md
@@ -1,7 +1,7 @@
 # Security Policy
 
 ## Supported Versions
-* The latest *stable* release of UnrealIRCd 5
+* The latest *stable* release of UnrealIRCd 5 (until 2023-06-01)
 * The latest *stable* release of UnrealIRCd 6
 
 See [UnrealIRCd releases](https://www.unrealircd.org/docs/UnrealIRCd_releases) for information on older versions and End Of Life dates.