diff --git a/CHANGELOG.md b/CHANGELOG.md
index dee8e5c..46747d6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,9 @@
 Latest
 ------
 
+### Changes
+* [cleverage/process-bundle#143](https://github.com/cleverage/process-bundle/issues/143) ZipTask and UnzipTask: `getOptions()` returns an `array` (it was `?array`), and the options are no longer read on initialization (they depend on the input, and are resolved on every execution). Compatible with cleverage/process-bundle v6.0, where `AbstractConfigurableTask::getOptions()` returns an `array`: allow `cleverage/process-bundle` `^6.0`.
+
 v2.2
 ------
 
diff --git a/composer.json b/composer.json
index ea24137..80f1d2a 100644
--- a/composer.json
+++ b/composer.json
@@ -39,7 +39,7 @@
   "require": {
     "php": ">=8.2",
     "ext-zip": "*",
-    "cleverage/process-bundle": "^5.0",
+    "cleverage/process-bundle": "^5.0 || ^6.0",
     "symfony/config": "^6.4|^7.4|^8",
     "symfony/dependency-injection": "^6.4|^7.4|^8",
     "symfony/finder": "^6.4|^7.4|^8",
diff --git a/src/Task/UnzipTask.php b/src/Task/UnzipTask.php
index 12bb462..57041ec 100644
--- a/src/Task/UnzipTask.php
+++ b/src/Task/UnzipTask.php
@@ -72,19 +72,27 @@ protected function configureOptions(OptionsResolver $resolver): void
     }
 
     /**
-     * @return array{filename: string, destination: string}|null
+     * The options depend on the input: they are resolved on every execution, not on initialization.
      */
     #[\Override]
-    protected function getOptions(ProcessState $state): ?array
+    public function initialize(ProcessState $state): void
+    {
+    }
+
+    /**
+     * @return array{filename: string, destination: string}
+     */
+    #[\Override]
+    protected function getOptions(ProcessState $state): array
     {
         // The options depend on the input: resolve them on every execution
-        if (\is_array($state->getInput())) {
-            $resolver = new OptionsResolver();
-            $this->configureOptions($resolver);
-            $this->options = $resolver->resolve(array_merge($state->getContextualizedOptions() ?? [], $state->getInput()));
-        }
+        $input = $state->getInput();
+        $resolver = new OptionsResolver();
+        $this->configureOptions($resolver);
+        /** @var array{filename: string, destination: string} $options */
+        $options = $resolver->resolve(array_merge((array) $state->getContextualizedOptions(), \is_array($input) ? $input : []));
+        $this->options = $options;
 
-        // @phpstan-ignore return.type
-        return $this->options;
+        return $options;
     }
 }
diff --git a/src/Task/ZipTask.php b/src/Task/ZipTask.php
index 5a59fd4..aaedf21 100644
--- a/src/Task/ZipTask.php
+++ b/src/Task/ZipTask.php
@@ -90,19 +90,27 @@ protected function configureOptions(OptionsResolver $resolver): void
     }
 
     /**
-     * @return array{filename: string, files: array<string>|string, files_base_path: string}|null
+     * The options depend on the input: they are resolved on every execution, not on initialization.
      */
     #[\Override]
-    protected function getOptions(ProcessState $state): ?array
+    public function initialize(ProcessState $state): void
+    {
+    }
+
+    /**
+     * @return array{filename: string, files: array<string>|string, files_base_path: string}
+     */
+    #[\Override]
+    protected function getOptions(ProcessState $state): array
     {
         // The options depend on the input: resolve them on every execution
-        if (\is_array($state->getInput())) {
-            $resolver = new OptionsResolver();
-            $this->configureOptions($resolver);
-            $this->options = $resolver->resolve(array_merge($state->getContextualizedOptions() ?? [], $state->getInput()));
-        }
+        $input = $state->getInput();
+        $resolver = new OptionsResolver();
+        $this->configureOptions($resolver);
+        /** @var array{filename: string, files: array<string>|string, files_base_path: string} $options */
+        $options = $resolver->resolve(array_merge((array) $state->getContextualizedOptions(), \is_array($input) ? $input : []));
+        $this->options = $options;
 
-        // @phpstan-ignore return.type
-        return $this->options;
+        return $options;
     }
 }