diff --git a/src/routes/test/apps-test.js b/src/routes/test/apps-test.js
index 15f8ef0f7..7af4b1296 100644
--- a/src/routes/test/apps-test.js
+++ b/src/routes/test/apps-test.js
@@ -41,7 +41,7 @@ var SERVER_URL = 'http://localhost:' + config.get('port');
 
 // Test image information
 var TEST_IMAGE_REPO = 'cloudron/test';
-var TEST_IMAGE_TAG = '22.0.0';
+var TEST_IMAGE_TAG = '23.0.0';
 var TEST_IMAGE = TEST_IMAGE_REPO + ':' + TEST_IMAGE_TAG;
 // var TEST_IMAGE_ID = child_process.execSync('docker inspect --format={{.Id}} ' + TEST_IMAGE).toString('utf8').trim();
 
diff --git a/src/test/apptask-test.js b/src/test/apptask-test.js
index b2a9a6f4a..02bc1874d 100644
--- a/src/test/apptask-test.js
+++ b/src/test/apptask-test.js
@@ -30,7 +30,7 @@ var MANIFEST = {
   "contactEmail": "support@cloudron.io",
   "version": "0.1.0",
   "manifestVersion": 1,
-  "dockerImage": "cloudron/test:18.0.0",
+  "dockerImage": "cloudron/test:23.0.0",
   "healthCheckPath": "/",
   "httpPort": 7777,
   "tcpPorts": {
diff --git a/src/test/checkInstall b/src/test/checkInstall
index f40b3972e..dbe84d6bc 100755
--- a/src/test/checkInstall
+++ b/src/test/checkInstall
@@ -3,7 +3,7 @@
 set -eu
 
 readonly SOURCE_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)"
-readonly TEST_IMAGE="cloudron/test:22.0.0"
+readonly TEST_IMAGE="cloudron/test:23.0.0"
 
 # reset sudo timestamp to avoid wrong success
 sudo -k || sudo --reset-timestamp