diff --git a/app/Dockerfile b/app/Dockerfile
index d813c1b..1584c2a 100644
--- a/app/Dockerfile
+++ b/app/Dockerfile
@@ -5,7 +5,7 @@ LABEL maintainer="JJTC <docker@jjtc.eu>"
 ENV PPM_VERSION=2.0.0 \
     PPM_HTTP_VERSION=2.0.2 \
     BOOKSTACK=BookStack \
-    BOOKSTACK_VERSION=0.27.3 \
+    BOOKSTACK_VERSION=0.27.4 \
     BOOKSTACK_HOME="/app"
 
 COPY docker-entrypoint.sh /app/docker-entrypoint.sh
diff --git a/docker-compose.yml b/docker-compose.yml
index 0125317..0d0054d 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,7 +1,7 @@
 version: '3.5'
 services:
   db:
-    image: mariadb:10.3
+    image: mariadb:10.4
     restart: unless-stopped
     environment:
       - TZ=${TZ}
@@ -25,7 +25,7 @@ services:
       - backend
 
   app:
-    image: jjtc/bookstack-ppm:0.27.3-r0
+    image: jjtc/bookstack-ppm:0.27.4-r0
     build: ./app/
     restart: unless-stopped
     depends_on: