diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index ee26ba8..07d9236 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -19,6 +19,7 @@ jobs:
                     - "8.0"
                     - "8.1"
                     - "8.2"
+                    - "8.3"
                 dependencies:
                     - "highest"
                     - "lowest"
diff --git a/composer.json b/composer.json
index 580a22f..eb3a32b 100644
--- a/composer.json
+++ b/composer.json
@@ -26,7 +26,7 @@
         }
     ],
     "require": {
-        "php": "~7.4.0 || ~8.0.0 || ~8.1.0 || ~8.2.0",
+        "php": "~7.4.0 || ~8.0.0 || ~8.1.0 || ~8.2.0 || ~8.3.0",
         "laminas/laminas-eventmanager": "^3.4",
         "laminas/laminas-router": "^3.5",
         "slm/queue": "^3.1",
@@ -36,7 +36,7 @@
     },
     "require-dev": {
         "ext-sqlite3": "*",
-        "doctrine/doctrine-orm-module": "^4.1 || ^5.0",
+        "doctrine/doctrine-orm-module": "^4.1 || ^5.0 || ^6.0",
         "laminas/laminas-modulemanager": "^2.11",
         "laminas/laminas-view": "^2.13",
         "laminas/laminas-log": "^2.15",
@@ -47,6 +47,9 @@
         "phpunit/phpunit": "^9.3",
         "squizlabs/php_codesniffer": "^3.6.2"
     },
+    "conflict": {
+        "doctrine/cache": ">=2.0"
+    },
     "suggest": {
         "doctrine/doctrine-orm-module": "If you use Doctrine in combination with Laminas",
         "roave/psr-container-doctrine": "Configures Doctrine services automatically."
diff --git a/tests/laminas-runner/composer.json b/tests/laminas-runner/composer.json
index 91bf5fe..89dc4b6 100644
--- a/tests/laminas-runner/composer.json
+++ b/tests/laminas-runner/composer.json
@@ -1,7 +1,7 @@
 {
     "require": {
         "slm/queue-doctrine": "*",
-        "doctrine/doctrine-orm-module": "^4.1 || ^5.0"
+        "doctrine/doctrine-orm-module": "^4.1 || ^5.0 || ^6.0"
     },
     "replace": {
         "laminas/laminas-cache-storage-adapter-apc": "*",
diff --git a/tests/mezzio-runner/composer.json b/tests/mezzio-runner/composer.json
index ea77043..788e567 100644
--- a/tests/mezzio-runner/composer.json
+++ b/tests/mezzio-runner/composer.json
@@ -4,7 +4,7 @@
         "mezzio/mezzio": "^3.2.1",
         "laminas/laminas-diactoros": "^2.3.0",
         "laminas/laminas-config-aggregator": "^1.2",
-        "doctrine/doctrine-orm-module": "^4.1 || ^5.0"
+        "doctrine/doctrine-orm-module": "^4.1 || ^5.0 || ^6.0"
     },
     "replace": {
         "laminas/laminas-cache-storage-adapter-apc": "*",