diff --git a/application/views/scripts/error/error.phtml b/application/views/scripts/error/error.phtml
index 5f4579ac6..cb87b1d42 100644
--- a/application/views/scripts/error/error.phtml
+++ b/application/views/scripts/error/error.phtml
@@ -23,7 +23,7 @@ $modReason = [];
 
 if (isset($requiredVendor, $requiredProject) && $requiredVendor && $requiredProject) {
     // TODO: I don't like this, can we define requirements somewhere else?
-    $coreDeps = ['icinga-php-library' => '>= 0.13', 'icinga-php-thirdparty' => '>= 0.12'];
+    $coreDeps = ['icinga-php-library' => '>= 0.13.2', 'icinga-php-thirdparty' => '>= 0.12'];
 
     foreach ($coreDeps as $libraryName => $requiredVersion) {
         if (! $libraries->has($libraryName)) {
diff --git a/doc/02-Installation.md b/doc/02-Installation.md
index 6bf9ee097..b13bc9833 100644
--- a/doc/02-Installation.md
+++ b/doc/02-Installation.md
@@ -395,7 +395,7 @@ You will need to install certain dependencies depending on your setup:
   monitor your infrastructure
 * A web server, e.g. Apache or Nginx
 * PHP version ≥ 7.2
-* [Icinga PHP Library (ipl)](https://github.com/Icinga/icinga-php-library) (≥ 0.13)
+* [Icinga PHP Library (ipl)](https://github.com/Icinga/icinga-php-library) (≥ 0.13.2)
 * [Icinga PHP Thirdparty](https://github.com/Icinga/icinga-php-thirdparty) (≥ 0.12)
 * The following PHP modules must be installed: cURL, json, gettext, fileinfo, intl, dom, OpenSSL and xml
 * The [pdfexport](https://github.com/Icinga/icingaweb2-module-pdfexport) module (≥0.10) is required for the
diff --git a/modules/monitoring/application/views/scripts/partials/event-history.phtml b/modules/monitoring/application/views/scripts/partials/event-history.phtml
index b81c95d30..b47e73dd4 100644
--- a/modules/monitoring/application/views/scripts/partials/event-history.phtml
+++ b/modules/monitoring/application/views/scripts/partials/event-history.phtml
@@ -30,7 +30,7 @@ $history->limit($limit * $page);
 ?>
 <div class="content">
 <?php
-$dateFormatter = new IntlDateFormatter(setlocale(LC_TIME, 0), IntlDateFormatter::FULL, IntlDateFormatter::NONE);
+$dateFormatter = new IntlDateFormatter(Locale::getDefault(), IntlDateFormatter::FULL, IntlDateFormatter::NONE);
 $lastDate = null;
 $flappingMsg = $this->translate('Flapping with a %.2f%% state change rate');
 $rowAction = Url::fromPath('monitoring/event/show');
diff --git a/modules/setup/library/Setup/WebWizard.php b/modules/setup/library/Setup/WebWizard.php
index f3b5557c8..5063ee83f 100644
--- a/modules/setup/library/Setup/WebWizard.php
+++ b/modules/setup/library/Setup/WebWizard.php
@@ -602,7 +602,7 @@ class WebWizard extends Wizard implements SetupWizard
         )));
 
         $set->add(new WebLibraryRequirement(array(
-            'condition'     => ['icinga-php-library', '>=', '0.13.0'],
+            'condition'     => ['icinga-php-library', '>=', '0.13.2'],
             'alias'         => 'Icinga PHP library',
             'description'   => mt(
                 'setup',