diff --git a/.ai/lessons.md b/.ai/lessons.md
index 826e1bb5a6..db826478c3 100644
--- a/.ai/lessons.md
+++ b/.ai/lessons.md
@@ -99,3 +99,4 @@
 ## Trace image replacements through build stages
 - When replacing a container image for development, inspect both Compose services and every development Dockerfile `FROM` stage.
 - A successful Compose pull does not prove the application build is free of the old image; validate the complete build dependency chain.
+- Do not replace a removed image with a floating `latest` tag. Find the newest stable release tag and pin it consistently in Compose and every Dockerfile stage.
diff --git a/docker-compose-maxio.dev.yml b/docker-compose-maxio.dev.yml
index 19bc9e6a20..b429244166 100644
--- a/docker-compose-maxio.dev.yml
+++ b/docker-compose-maxio.dev.yml
@@ -162,7 +162,7 @@ services:
     networks:
       - coolify
   # maxio-init:
-  #   image: quay.io/minio/aistor/mc:latest
+  #   image: quay.io/minio/aistor/mc:RELEASE.2026-09-06T02-44-40Z
   #   pull_policy: always
   #   container_name: coolify-maxio-init
   #   restart: no
@@ -182,7 +182,7 @@ services:
   #   networks:
   #     - coolify
   minio-init:
-    image: quay.io/minio/aistor/mc:latest
+    image: quay.io/minio/aistor/mc:RELEASE.2026-09-06T02-44-40Z
     pull_policy: always
     container_name: coolify-minio-init
     restart: no
diff --git a/docker-compose.dev-multi.yml b/docker-compose.dev-multi.yml
index 8ddcfc8f92..31908436f4 100644
--- a/docker-compose.dev-multi.yml
+++ b/docker-compose.dev-multi.yml
@@ -195,7 +195,7 @@ services:
 
   minio-init:
     profiles: ["minio"]
-    image: quay.io/minio/aistor/mc:latest
+    image: quay.io/minio/aistor/mc:RELEASE.2026-09-06T02-44-40Z
     pull_policy: always
     restart: "no"
     depends_on:
diff --git a/docker-compose.dev.yml b/docker-compose.dev.yml
index 276912717d..869a059c94 100644
--- a/docker-compose.dev.yml
+++ b/docker-compose.dev.yml
@@ -150,7 +150,7 @@ services:
     networks:
       - coolify
   minio-init:
-    image: quay.io/minio/aistor/mc:latest
+    image: quay.io/minio/aistor/mc:RELEASE.2026-09-06T02-44-40Z
     pull_policy: always
     container_name: coolify-minio-init
     restart: no
diff --git a/docker/coolify-helper/Dockerfile b/docker/coolify-helper/Dockerfile
index 94330bbcec..1fe99f01c2 100644
--- a/docker/coolify-helper/Dockerfile
+++ b/docker/coolify-helper/Dockerfile
@@ -15,11 +15,7 @@ ARG NIXPACKS_VERSION=1.41.0
 ARG RAILPACK_VERSION=0.23.0
 # https://github.com/jdx/mise/releases — must match railpack's pinned version (https://raw.githubusercontent.com/railwayapp/railpack/refs/heads/main/core/mise/version.txt)
 ARG MISE_VERSION=2026.3.17
-# https://github.com/minio/mc/releases
-ARG MINIO_VERSION=RELEASE.2025-08-13T08-35-41Z
-
-
-FROM minio/mc:${MINIO_VERSION} AS minio-client
+FROM quay.io/minio/aistor/mc:RELEASE.2026-09-06T02-44-40Z AS minio-client
 
 FROM ${BASE_IMAGE} AS base
 
diff --git a/docker/development/Dockerfile b/docker/development/Dockerfile
index ee9105ee02..e0df74b220 100644
--- a/docker/development/Dockerfile
+++ b/docker/development/Dockerfile
@@ -12,7 +12,7 @@ ARG NGINX_VERSION=1.31.2-r1
 # =================================================================
 # Get MinIO client
 # =================================================================
-FROM quay.io/minio/aistor/mc:latest AS minio-client
+FROM quay.io/minio/aistor/mc:RELEASE.2026-09-06T02-44-40Z AS minio-client
 
 # =================================================================
 # Final Stage: Production image
diff --git a/docker/production/Dockerfile b/docker/production/Dockerfile
index 30d4a55e72..540602eceb 100644
--- a/docker/production/Dockerfile
+++ b/docker/production/Dockerfile
@@ -1,8 +1,6 @@
 # Versions
 # https://hub.docker.com/r/serversideup/php/tags?name=8.4-fpm-nginx-alpine
 ARG SERVERSIDEUP_PHP_VERSION=8.4-fpm-nginx-alpine
-# https://github.com/minio/mc/releases
-ARG MINIO_VERSION=RELEASE.2025-08-13T08-35-41Z
 # https://github.com/cloudflare/cloudflared/releases
 ARG CLOUDFLARED_VERSION=2026.7.3
 # https://www.postgresql.org/support/versioning/
@@ -63,7 +61,7 @@ RUN npm run build
 # =================================================================
 # Stage 3: Get MinIO client
 # =================================================================
-FROM minio/mc:${MINIO_VERSION} AS minio-client
+FROM quay.io/minio/aistor/mc:RELEASE.2026-09-06T02-44-40Z AS minio-client
 
 # =================================================================
 # Final Stage: Production image
diff --git a/tests/Unit/MinioClientPackagingTest.php b/tests/Unit/MinioClientPackagingTest.php
index d4c46e7fbe..d5e029601b 100644
--- a/tests/Unit/MinioClientPackagingTest.php
+++ b/tests/Unit/MinioClientPackagingTest.php
@@ -1,20 +1,21 @@
 <?php
 
-it('pins the same MinIO client release in every Coolify image', function () {
-    $dockerfiles = [
+it('pins the AIStor MinIO client release in every Coolify image', function () {
+    $imageFiles = [
         dirname(__DIR__, 2).'/docker/production/Dockerfile',
         dirname(__DIR__, 2).'/docker/development/Dockerfile',
         dirname(__DIR__, 2).'/docker/coolify-helper/Dockerfile',
+        dirname(__DIR__, 2).'/docker-compose.dev.yml',
+        dirname(__DIR__, 2).'/docker-compose.dev-multi.yml',
+        dirname(__DIR__, 2).'/docker-compose-maxio.dev.yml',
     ];
 
-    $versions = collect($dockerfiles)->map(function (string $dockerfile): string {
-        $contents = file_get_contents($dockerfile);
+    foreach ($imageFiles as $imageFile) {
+        $contents = file_get_contents($imageFile);
 
-        expect(preg_match('/^ARG MINIO_VERSION=(.+)$/m', $contents, $matches))->toBe(1);
-
-        return $matches[1];
-    });
-
-    expect($versions->unique()->values()->all())
-        ->toBe(['RELEASE.2025-08-13T08-35-41Z']);
+        expect($contents)
+            ->toContain('quay.io/minio/aistor/mc:RELEASE.2026-09-06T02-44-40Z')
+            ->not->toContain('quay.io/minio/aistor/mc:latest')
+            ->not->toContain('minio/mc:');
+    }
 });