diff --git a/Build/Scripts/runTests.sh b/Build/Scripts/runTests.sh
index f4949d9..0b9fac9 100755
--- a/Build/Scripts/runTests.sh
+++ b/Build/Scripts/runTests.sh
@@ -385,7 +385,7 @@ fi
 
 handleDbmsOptions
 
-COMPOSER_ROOT_VERSION="1.0.4"
+COMPOSER_ROOT_VERSION="1.0.5-dev"
 CONTAINER_INTERACTIVE="-it --init"
 HOST_UID=$(id -u)
 USERSET=""
diff --git a/VERSION b/VERSION
index ee90284..74bcb8d 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.0.4
+1.0.5-dev
diff --git a/composer.json b/composer.json
index 1b662f2..33d7687 100644
--- a/composer.json
+++ b/composer.json
@@ -33,7 +33,7 @@
             "web-dir": ".Build/Web",
             "cms-package-dir": "{$vendor-dir}/typo3/cms",
             "app-dir": ".Build",
-            "version": "1.0.4"
+            "version": "1.0.5-dev"
         },
         "branch-alias": {
             "dev-main": "2.x-dev",
diff --git a/ext_emconf.php b/ext_emconf.php
index d8ee9d9..878987e 100644
--- a/ext_emconf.php
+++ b/ext_emconf.php
@@ -3,7 +3,7 @@
 $EM_CONF[$_EXTKEY] = [
     'title' => 'DeepL Write',
     'description' => 'DeepL Write support for TYPO3. Write better texts, translate to simple language',
-    'version' => '1.0.4',
+    'version' => '1.0.5',
     'category' => 'misc',
     'state' => 'stable',
     'author' => 'web-vision GmbH Team',