diff --git a/services/personal-mastodon-instance/docker-compose.yml b/services/personal-mastodon-instance/docker-compose.yml
index cfd0b13..7e311b2 100755
--- a/services/personal-mastodon-instance/docker-compose.yml
+++ b/services/personal-mastodon-instance/docker-compose.yml
@@ -58,7 +58,7 @@ services:
   personal-mastodon-instance-postgres:
     # How to upgrade to a major version
     # https://github.com/tianon/docker-postgres-upgrade
-    image: postgres:15.4-alpine
+    image: postgres:15.8-alpine
     container_name: personal-mastodon-instance-postgres
     restart: always
     healthcheck:
diff --git a/services/professional-mastodon-instance/docker-compose.yml b/services/professional-mastodon-instance/docker-compose.yml
index 0d1a69e..44bc787 100755
--- a/services/professional-mastodon-instance/docker-compose.yml
+++ b/services/professional-mastodon-instance/docker-compose.yml
@@ -73,7 +73,7 @@ services:
   professional-mastodon-instance-postgres:
     # How to upgrade to a major version
     # https://github.com/tianon/docker-postgres-upgrade
-    image: postgres:15.4-alpine
+    image: postgres:15.8-alpine
     container_name: professional-mastodon-instance-postgres
     restart: always
     healthcheck: