diff --git a/Dockerfile b/Dockerfile
index ed78f9e..11fab9c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM ghcr.io/coreruleset/modsecurity-crs:4.7.0-apache-alpine-202410090410
+FROM ghcr.io/coreruleset/modsecurity-crs:4.9.0-apache-alpine-202412020312
 
 ENV ACCESSLOG=/dev/stdout \
     ERRORLOG='"|/usr/bin/stdbuf -i0 -oL /opt/transform-alert-message.awk"' \