diff --git a/psalm.xml b/psalm.xml
index d4a2702..c695981 100644
--- a/psalm.xml
+++ b/psalm.xml
@@ -14,6 +14,12 @@
         </ignoreFiles>
     </projectFiles>
     <issueHandlers>
+        <DeprecatedInterface>
+            <errorLevel type="suppress">
+                <file name="src/Commands/InfoCommand.php"/>
+                <file name="src/DeclarationLocator.php"/>
+            </errorLevel>
+        </DeprecatedInterface>
         <PropertyNotSetInConstructor>
             <errorLevel type="suppress">
                 <file name="src/Commands/Scaffolder/ActivityCommand.php"/>
diff --git a/src/Dispatcher.php b/src/Dispatcher.php
index bc643b4..0a750ad 100644
--- a/src/Dispatcher.php
+++ b/src/Dispatcher.php
@@ -32,7 +32,7 @@ public function serve(): void
         /**
          * @var array<class-string<WorkflowInterface>|class-string<ActivityInterface>, ReflectionClass> $declarations
          */
-        $declarations = $this->container->get(DeclarationLocatorInterface::class)->getDeclarations();
+        $declarations = $this->container->get(DeclarationRegistryInterface::class)->getDeclarations();
 
         // factory initiates and runs task queue specific activity and workflow workers
         /** @var WorkerFactoryInterface $factory */