diff --git a/.devcontainer/docker-compose.yml b/.devcontainer/docker-compose.yml
index 51616fc..46117d2 100644
--- a/.devcontainer/docker-compose.yml
+++ b/.devcontainer/docker-compose.yml
@@ -7,7 +7,7 @@ services:
       dockerfile: Dockerfile
       args:
         # Elixir Version: 1.9, 1.10, 1.10.4, ...
-        VARIANT: '1.15.4'
+        VARIANT: '1.15.5'
         # Phoenix Version: 1.4.17, 1.5.4, ...
         PHOENIX_VERSION: '1.7.7'
         # Node Version: 12, 14, ...
@@ -22,7 +22,7 @@ services:
     command: sleep infinity
 
   db:
-    image: postgres:15.3-bullseye
+    image: postgres:15.4-bullseye
     restart: unless-stopped
     volumes:
       - postgres-data:/var/lib/postgresql/data