diff --git a/composer.json b/composer.json
index 8f1fd5b..6fd55c4 100644
--- a/composer.json
+++ b/composer.json
@@ -12,7 +12,8 @@
   "type": "typo3-cms-extension",
   "license": "GPL-3.0",
   "require": {
-    "typo3/cms": ">=7.6.0 <9.0.0"
+    "typo3/cms": ">=7.6.0 <9.0.0",
+    "in2code/powermail": ">=3.3.0 <5.0.0"
   },
   "autoload": {
     "psr-4": {
diff --git a/ext_emconf.php b/ext_emconf.php
index 1dddea2..0a1c88a 100755
--- a/ext_emconf.php
+++ b/ext_emconf.php
@@ -36,7 +36,7 @@
     'constraints' => [
         'depends' => [
             'typo3' => '7.6.0-8.99.99',
-            'powermail' => '3.3.0-3.99.99',
+            'powermail' => '3.3.0-4.99.99',
         ],
         'conflicts' => [],
         'suggests' => [],