diff --git a/firefox-esr.sls b/firefox-esr.sls
index ddcc20cb..45abf3fc 100644
--- a/firefox-esr.sls
+++ b/firefox-esr.sls
@@ -13,6 +13,7 @@
 
 {% load_yaml as versions -%}
 # renovate: datasource=custom.firefox depName=firefox-esr packageName=FIREFOX_ESR
+- '115.15.0'
 - '115.14.0'
 - '115.13.0'
 - '115.12.0'