diff --git a/doc/02-Installation.md.d/From-Source.md b/doc/02-Installation.md.d/From-Source.md
index 705d32ca..6e362f7d 100644
--- a/doc/02-Installation.md.d/From-Source.md
+++ b/doc/02-Installation.md.d/From-Source.md
@@ -11,7 +11,7 @@ Make sure you use `icingadb` as the module name. The following requirements must
 * The following PHP modules must be installed: `cURL`, `dom`, `json`, `libxml`
 * [Icinga DB](https://github.com/Icinga/icingadb) ≥ 1.4
 * [Icinga Web 2](https://github.com/Icinga/icingaweb2) ≥ 2.12.5
-* [Icinga PHP Library (ipl)](https://github.com/Icinga/icinga-php-library) ≥ 0.19.0
+* [Icinga PHP Library (ipl)](https://github.com/Icinga/icinga-php-library) ≥ 0.20.0
 * [Icinga PHP Thirdparty](https://github.com/Icinga/icinga-php-thirdparty) ≥ 0.15.0
 
 <!-- {% include "02-Installation.md" %} -->
diff --git a/module.info b/module.info
index 3c750f88..5e54f221 100644
--- a/module.info
+++ b/module.info
@@ -1,6 +1,6 @@
 Module: icingadb
 Version: 1.4.0
 Requires:
-  Libraries: icinga-php-library (>=0.19.0), icinga-php-thirdparty (>=0.15.0)
+  Libraries: icinga-php-library (>=0.20.0), icinga-php-thirdparty (>=0.15.0)
 Description: Icinga DB Web
   UI for Icinga DB – Provides a graphical interface to your Icinga monitoring