diff --git a/bookstack/Dockerfile b/bookstack/Dockerfile
index f8dd91c..b9b572b 100644
--- a/bookstack/Dockerfile
+++ b/bookstack/Dockerfile
@@ -31,7 +31,7 @@ RUN \
         php81=8.1.23-r0 \
     \
     && apk add --no-cache --virtual .build-dependencies \
-       composer=2.6.4-r0 \
+       composer=2.6.5-r0 \
     \
     && curl -J -L -o /tmp/bookstack.tar.gz \
         "https://github.com/BookStackApp/BookStack/archive/${BOOKSTACK_VERSION}.tar.gz" \