diff --git a/CMakeLists.txt b/CMakeLists.txt
index 196d3ce71..51c6c93ff 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -2,7 +2,7 @@
 
 cmake_minimum_required(VERSION 2.8.8)
 set(BOOST_MIN_VERSION "1.66.0")
-set(CMAKE_CXX_STANDARD 14)
+set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 set(CMAKE_CXX_EXTENSIONS OFF)
 
diff --git a/doc/21-development.md b/doc/21-development.md
index c25ae839a..66ce290fe 100644
--- a/doc/21-development.md
+++ b/doc/21-development.md
@@ -697,7 +697,7 @@ Read more about it in the [Technical Concepts](19-technical-concepts.md#technica
 
 #### Get to know the code <a id="development-develop-get-to-know-the-code"></a>
 
-First off, you really need to know C++ and portions of C++14 and the boost libraries.
+First off, you really need to know C++ and portions of C++17 and the boost libraries.
 Best is to start with a book or online tutorial to get into the basics.
 Icinga developers gained their knowledge through studies, training and self-teaching
 code by trying it out and asking senior developers for guidance.
@@ -1138,7 +1138,7 @@ for formatting, splitting strings, joining arrays into strings, etc.
 Use the existing libraries and header-only includes
 for this specific version.
 
-Note: Prefer C++14 features where possible, e.g. std::atomic and lambda functions.
+Note: Prefer C++17 features where possible, e.g. std::atomic and lambda functions.
 
 General:
 
@@ -1185,7 +1185,7 @@ If you consider an external library or code to be included with Icinga, the foll
 requirements must be fulfilled:
 
 - License is compatible with GPLv2+. Boost license, MIT works, Apache is not.
-- C++14 is supported
+- C++17 is supported
 - Header only implementations are preferred, external libraries require packages on every distribution.
 - No additional frameworks, Boost is the only allowed.
 - The code is proven to be robust and the GitHub repository is alive, or has 1k+ stars. Good libraries also provide a user list, if e.g. Ceph is using it, this is a good candidate.
@@ -2172,7 +2172,7 @@ Icinga application using a dist tarball (including notes for distributions):
 
 * cmake >= 2.6
 * GNU make (make) or ninja-build
-* C++ compiler which supports C++14
+* C++ compiler which supports C++17
     * RHEL/Fedora/SUSE: gcc-c++ >= 7 (extra Developer Tools on RHEL7 see below)
     * Debian/Ubuntu: build-essential
     * Alpine: build-base
@@ -2445,7 +2445,7 @@ The following packages are required to build the SELinux policy module:
 ##### RHEL/CentOS 7
 
 The RedHat Developer Toolset is required for building Icinga 2 beforehand.
-This contains a C++ compiler which supports C++14 features.
+This contains a C++ compiler which supports C++17 features.
 
 ```bash
 yum install centos-release-scl