diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6c3e200..00ca29e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,7 @@
 ## stable-6726-2
 
+**IMPORTANT:** This version updates Prosody to version 0.11.12 to fix CVE-2022-0217: https://prosody.im/security/advisory_20220113/
+
 Based on stable release 6726-2.
 
 * ae3e7e7 jvb: make MUC_NICKNAME configurable