diff --git a/library/Businessprocess/State/IcingaDbState.php b/library/Businessprocess/State/IcingaDbState.php
index 68ac45d..0eb0927 100644
--- a/library/Businessprocess/State/IcingaDbState.php
+++ b/library/Businessprocess/State/IcingaDbState.php
@@ -122,7 +122,7 @@ class IcingaDbState
         }
 
         if ($row->state->last_state_change !== null) {
-            $node->setLastStateChange($row->state->last_state_change/1000);
+            $node->setLastStateChange($row->state->last_state_change->getTimestamp());
         }
         if ($row->state->in_downtime) {
             $node->setDowntime(true);
diff --git a/module.info b/module.info
index 81092a0..2e988fa 100644
--- a/module.info
+++ b/module.info
@@ -2,7 +2,7 @@ Name: Businessprocess
 Version: 2.4.0
 Requires:
   Libraries: icinga-php-library (>=0.8.0), icinga-php-thirdparty (>=0.11.0)
-  Modules: monitoring (>=2.9.0), icingadb (>=1.0.0)
+  Modules: monitoring (>=2.9.0), icingadb (>=1.1.0)
 Description: A Business Process viewer and modeler
  Provides a web-based process modeler for Icinga. It integrates as a module
  into Icinga Web 2 and provides a plugin check command for Icinga. Tile and tree