diff --git a/docker-compose.yml b/docker-compose.yml
index ca87e57..cf490c8 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -7,7 +7,7 @@ services:
       replicas: 1
       restart_policy:
         condition: any
-    image: mariadb:10
+    image: mariadb:10@sha256:589c4347e21c2dd4292d8929091faf6d78e80acdcca6cb04aa0a1337f22765f1
     command: --max-allowed-packet=128MB
     networks:
       - appnet
@@ -25,7 +25,7 @@ services:
       replicas: 1
       restart_policy:
         condition: any
-    image: zabbix/zabbix-server-mysql
+    image: zabbix/zabbix-server-mysql@sha256:0c3c165674c6452e0c42795b89d2fced7b79164f37bab52f0a77cedc40e522a2
     networks:
       - appnet
     environment:
@@ -44,7 +44,7 @@ services:
       replicas: 1
       restart_policy:
         condition: any
-    image: zabbix/zabbix-web-nginx-mysql
+    image: zabbix/zabbix-web-nginx-mysql@sha256:ea93db4550e6dd130d611b17634242fb18f6fc05e8c1109dd308444fc7a8717d
     networks:
       - appnet
       - externalnet