diff --git a/.circleci/config.yml b/.circleci/config.yml
index b797708..81893df 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -2,7 +2,7 @@ version: 2
 jobs:
   build:
     machine: # executor type
-      image: ubuntu-2204:2022.04.1 # # recommended linux image - includes Ubuntu 20.04, docker 19.03.13, docker-compose 1.27.4
+      image: ubuntu-2204:2023.07.2
 
     steps:
       - checkout
diff --git a/dockerfile b/dockerfile
index 7aa4478..beedd55 100644
--- a/dockerfile
+++ b/dockerfile
@@ -1,6 +1,6 @@
 # syntax=docker/dockerfile:1
 
-FROM debian:11
+FROM debian:12
 
 ARG TARGETPLATFORM
 ARG BINARY_NAME=cosmos
diff --git a/dockerfile.arm64 b/dockerfile.arm64
index e3f53f6..c4d58b0 100644
--- a/dockerfile.arm64
+++ b/dockerfile.arm64
@@ -1,6 +1,6 @@
 # syntax=docker/dockerfile:1
 
-FROM --platform=linux/arm64 arm64v8/debian:11
+FROM --platform=linux/arm64 arm64v8/debian:12
 
 EXPOSE 443 80